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tmuxp load AssertionError or loads session only partially #860

@mirosval

Description

@mirosval

Step 1: Provide a summary of your problem

Previously working setup now only opens the first window when loading a new session using tmuxp load

Step 2: Provide tmuxp details

`tmuxp debug-info`

------------------------- environment:	dist: macOS-13.1-arm64-arm-64bit	arch: arm64	uname: Darwin; REDACTED.local; 22.2.0	version: Darwin Kernel Version 22.2.0: Fri Nov 11 02:03:51 PST 2022; root:xnu-8792.61.2~4/RELEASE_ARM64_T6000 ------------------------- python version: 3.11.1 (main, Dec 23 2022, 09:28:24) [Clang 14.0.0 (clang-1400.0.29.202)] system PATH: REDACTED tmux version: 3.3 libtmux version: 0.18.2 tmuxp version: 1.24.0 tmux path: /opt/homebrew/bin/tmux tmuxp path: /opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/tmuxp shell: /opt/homebrew/bin/zsh ------------------------- tmux sessions:	dotfiles: 1 windows (created Tue Jan 3 12:56:29 2023) (attached)	tracking: 1 windows (created Wed Jan 4 11:54:03 2023) tmux windows:	1: dotfiles* (2 panes) [426x85] [layout fc8c,426x85,0,0{212x85,0,0,1,213x85,213,0,2}] @1 (active) tmux panes:	1: [212x85] [history 21/50000, 447700 bytes] %1	2: [213x85] [history 1464/50000, 718639 bytes] %2 (active) tmux global options:	@net_speed_interfaces en0	@plugin jimeh/tmux-themepack	@powerline-color-activity-1 colour75	@powerline-color-black-1 black	@powerline-color-grey-1 colour233	@powerline-color-grey-2 colour235	@powerline-color-grey-3 colour238	@powerline-color-grey-4 colour240	@powerline-color-grey-5 colour243	@powerline-color-grey-6 colour245	@powerline-color-main-1 colour39	@powerline-color-main-2 colour81	@powerline-color-main-3 colour75	@powerline-status-bg colour233	@powerline-status-fg colour240	@powerline-status-left-area-left-bg colour39	@powerline-status-left-area-left-fg colour233	@powerline-status-left-area-middle-bg colour240	@powerline-status-left-area-middle-fg colour233	@powerline-status-left-area-right-bg colour235	@powerline-status-left-area-right-fg colour240	@powerline-status-left-bg colour233	@powerline-status-left-fg colour243	@powerline-status-right-area-left-bg colour235	@powerline-status-right-area-left-fg colour240	@powerline-status-right-area-middle-bg colour240	@powerline-status-right-area-middle-fg colour233	@powerline-status-right-area-right-bg colour245	@powerline-status-right-area-right-fg colour233	@powerline-status-right-bg colour233	@powerline-status-right-fg colour243	@resurrect-restore-script-path /Users/mirosval/.tmux/plugins/tmux-resurrect/scripts/restore.sh	@resurrect-save-script-path /Users/mirosval/.tmux/plugins/tmux-resurrect/scripts/save.sh	@resurrect-strategy-irb default_strategy	@resurrect-strategy-mosh-client default_strategy	@resurrect-strategy-nvim session	@resurrect-strategy-vim session	@theme-clock-mode-colour colour39	@theme-clock-mode-style 24	@theme-display-panes-active-colour colour245	@theme-display-panes-colour colour233	@theme-message-bg colour39	@theme-message-command-bg colour39	@theme-message-command-fg black	@theme-message-fg black	@theme-mode-bg colour39	@theme-mode-fg black	@theme-pane-active-border-bg default	@theme-pane-active-border-fg colour39	@theme-pane-border-bg default	@theme-pane-border-fg colour238	@theme-status-bg colour233	@theme-status-fg colour240	@theme-status-interval 1	@theme-status-justify centre	@theme-status-left "#[fg=colour233,bg=colour39,bold] #S #[fg=colour39,bg=colour240,nobold]#[fg=colour233,bg=colour240] #(whoami) #[fg=colour240,bg=colour235]#[fg=colour240,bg=colour235] #I:#P #[fg=colour235,bg=colour233,nobold]"	@theme-status-left-bg colour233	@theme-status-left-fg colour243	@theme-status-left-length 40	@theme-status-left-prefix ''	@theme-status-left-suffix ''	@theme-status-right "#[fg=colour235,bg=colour233]#[fg=colour240,bg=colour235] %H:%M:%S #[fg=colour240,bg=colour235]#[fg=colour233,bg=colour240] %d-%b-%y #[fg=colour245,bg=colour240]#[fg=colour233,bg=colour245,bold] #H "	@theme-status-right-bg colour233	@theme-status-right-fg colour243	@theme-status-right-length 150	@theme-status-right-prefix ''	@theme-status-right-suffix ''	@theme-window-status-activity-bg colour233	@theme-window-status-activity-fg colour75	@theme-window-status-current-bg colour39	@theme-window-status-current-fg black	@theme-window-status-current-format " #I:#W#F "	@theme-window-status-current-prefix ''	@theme-window-status-current-suffix ''	@theme-window-status-format " #I:#W#F "	@theme-window-status-prefix ''	@theme-window-status-separator ''	@theme-window-status-suffix ''	@themepack powerline/block/cyan	@themepack-status-left-area-left-format "#S"	@themepack-status-left-area-left-prefix ''	@themepack-status-left-area-left-suffix ''	@themepack-status-left-area-middle-format "#(whoami)"	@themepack-status-left-area-middle-prefix ''	@themepack-status-left-area-middle-suffix ''	@themepack-status-left-area-right-format "#I:#P"	@themepack-status-left-area-right-prefix ''	@themepack-status-left-area-right-suffix ''	@themepack-status-right-area-left-format "%H:%M:%S"	@themepack-status-right-area-left-prefix ''	@themepack-status-right-area-left-suffix ''	@themepack-status-right-area-middle-format "%d-%b-%y"	@themepack-status-right-area-middle-prefix ''	@themepack-status-right-area-middle-suffix ''	@themepack-status-right-area-right-format "#H"	@themepack-status-right-area-right-prefix ''	@themepack-status-right-area-right-suffix ''	@themepack-window-status-current-format "#I:#W#F"	@themepack-window-status-current-prefix ''	@themepack-window-status-current-suffix ''	@themepack-window-status-format "#I:#W#F"	@themepack-window-status-prefix ''	@themepack-window-status-suffix ''	activity-action other	assume-paste-time 1	base-index 1	bell-action any	default-command "reattach-to-user-namespace -l /opt/homebrew/bin/zsh"	default-shell /opt/homebrew/bin/zsh	default-size 80x24	destroy-unattached off	detach-on-destroy on	display-panes-active-colour colour245	display-panes-colour colour233	display-panes-time 1000	display-time 4000	history-limit 50000	key-table root	lock-after-time 0	lock-command "lock -np"	message-command-style fg=black,bg=colour39	message-style fg=black,bg=colour39	mouse on	prefix C-b	prefix2 None	renumber-windows on	repeat-time 500	set-titles off	set-titles-string "#S:#I:#W - \"#T\" #{session_alerts}"	silence-action other	status on	status-bg default	status-fg default	status-format[0] "#[align=left range=left #{E:status-left-style}]#[push-default]#{T;=/#{status-left-length}:status-left}#[pop-default]#[norange default]#[list=on align=#{status-justify}]#[list=left-marker]<#[list=right-marker]>#[list=on]#{W:#[range=window|#{window_index} #{E:window-status-style}#{?#{&&:#{window_last_flag},#{!=:#{E:window-status-last-style},default}}, #{E:window-status-last-style},}#{?#{&&:#{window_bell_flag},#{!=:#{E:window-status-bell-style},default}}, #{E:window-status-bell-style},#{?#{&&:#{||:#{window_activity_flag},#{window_silence_flag}},#{!=:#{E:window-status-activity-style},default}}, #{E:window-status-activity-style},}}]#[push-default]#{T:window-status-format}#[pop-default]#[norange default]#{?window_end_flag,,#{window-status-separator}},#[range=window|#{window_index} list=focus #{?#{!=:#{E:window-status-current-style},default},#{E:window-status-current-style},#{E:window-status-style}}#{?#{&&:#{window_last_flag},#{!=:#{E:window-status-last-style},default}}, #{E:window-status-last-style},}#{?#{&&:#{window_bell_flag},#{!=:#{E:window-status-bell-style},default}}, #{E:window-status-bell-style},#{?#{&&:#{||:#{window_activity_flag},#{window_silence_flag}},#{!=:#{E:window-status-activity-style},default}}, #{E:window-status-activity-style},}}]#[push-default]#{T:window-status-current-format}#[pop-default]#[norange list=on default]#{?window_end_flag,,#{window-status-separator}}}#[nolist align=right range=right #{E:status-right-style}]#[push-default]#{T;=/#{status-right-length}:status-right}#[pop-default]#[norange default]"	status-format[1] "#[align=centre]#{P:#{?pane_active,#[reverse],}#{pane_index}[#{pane_width}x#{pane_height}]#[default] }"	status-interval 1	status-justify centre	status-keys emacs	status-left "#[fg=colour232,bg=colour255,bold] #S #[fg=colour255,bg=colour250,nobold]#[fg=0,bg=colour250] #(whoami) #[fg=colour250,bg=colour245]#[fg=0,bg=colour245] #I:#P #[fg=colour245,bg=colour240]#[fg=0,bg=colour240] %b %d %H:%M:%S #[fg=colour240,bg=colour233,nobold]"	status-left-length 100	status-left-style fg=colour243,bg=colour233	status-position bottom	status-right "#[fg=colour245,bg=colour233]#[fg=0,bg=colour245] #(diffmetrik --metric download) #(diffmetrik --metric upload) #[fg=colour250,bg=colour245]#[fg=0,bg=colour250] bat: #(~/.dotfiles/scripts/battery.sh)%% #[fg=colour255,bg=colour250,bold]#[fg=colour0,bg=colour255]#(~/.dotfiles/scripts/spotify.sh)"	status-right-length 150	status-right-style fg=colour243,bg=colour233	status-style fg=colour240,bg=colour233	update-environment[0] DISPLAY	update-environment[1] KRB5CCNAME	update-environment[2] SSH_ASKPASS	update-environment[3] SSH_AUTH_SOCK	update-environment[4] SSH_AGENT_PID	update-environment[5] SSH_CONNECTION	update-environment[6] WINDOWID	update-environment[7] XAUTHORITY	visual-activity off	visual-bell off	visual-silence off	word-separators "!\"#$%&'()*+,-./:;<=>?@[\\]^`{|}~" tmux window options:	cursor-colour none	cursor-style default	aggressive-resize on	allow-passthrough off	allow-rename off	alternate-screen on	automatic-rename on	automatic-rename-format "#{?pane_in_mode,[tmux],#{pane_current_command}}#{?pane_dead,[dead],}"	clock-mode-colour colour39	clock-mode-style 24	copy-mode-match-style bg=cyan,fg=black	copy-mode-current-match-style bg=magenta,fg=black	copy-mode-mark-style bg=red,fg=black	fill-character ''	main-pane-height 24	main-pane-width 80	mode-keys vi	mode-style fg=black,bg=colour39	monitor-activity off	monitor-bell on	monitor-silence 0	other-pane-height 0	other-pane-width 0	pane-active-border-style fg=colour39,bg=default	pane-base-index 1	pane-border-format "#{?pane_active,#[reverse],}#{pane_index}#[default] \"#{pane_title}\""	pane-border-indicators colour	pane-border-lines single	pane-border-status off	pane-border-style fg=colour238,bg=default	pane-colours	popup-style default	popup-border-style default	popup-border-lines single	remain-on-exit off	remain-on-exit-format "Pane is dead (#{?#{!=:#{pane_dead_status},},status #{pane_dead_status},}#{?#{!=:#{pane_dead_signal},},signal #{pane_dead_signal},}, #{t:pane_dead_time})"	scroll-on-clear on	synchronize-panes off	window-active-style default	window-size latest	window-style default	window-status-activity-style fg=colour75,bg=colour233	window-status-bell-style reverse	window-status-current-format " #I:#W#F "	window-status-current-style fg=black,bg=colour39	window-status-format " #I:#W#F "	window-status-last-style default	window-status-separator ''	window-status-style default	wrap-search on	xterm-keys on 

Step 3: Describe the problem:

Steps to reproduce:

Have a file like this:

session_name: some name windows: - window_name: a layout: main-vertical options: main-pane-width: 50% shell_command_before: cd ~/work/a panes: - nvim - neofetch - window_name: b layout: main-vertical options: main-pane-width: 50% shell_command_before: cd ~/work/b panes: - nvim - neofetch 

Do

tmuxp load ~/.config/tmuxp/some_name.yml 

Observed Results:

Traceback (most recent call last): File "/opt/homebrew/bin/tmuxp", line 8, in <module> sys.exit(cli.cli()) ^^^^^^^^^ File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/tmuxp/cli/__init__.py", line 134, in cli command_load( File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/tmuxp/cli/load.py", line 642, in command_load load_workspace( File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/tmuxp/cli/load.py", line 436, in load_workspace _load_attached(builder, detached) File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/tmuxp/cli/load.py", line 184, in _load_attached builder.build() File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/tmuxp/workspace/builder.py", line 292, in build for window, window_config in self.iter_create_windows(session, append): File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/tmuxp/workspace/builder.py", line 420, in iter_create_windows window.set_window_option(key, val) File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/libtmux/window.py", line 346, in set_window_option self.refresh() File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/libtmux/window.py", line 84, in refresh return super()._refresh( ^^^^^^^^^^^^^^^^^ File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/libtmux/neo.py", line 174, in _refresh obj = fetch_obj( ^^^^^^^^^^ File "/opt/homebrew/Cellar/tmuxp/1.24.0/libexec/lib/python3.11/site-packages/libtmux/neo.py", line 242, in fetch_obj assert obj is not None ^^^^^^^^^^^^^^^ AssertionError 

Sometimes when I run the command immediately again, it works, but only creates the first window of the two

Expected Results:

Create and open the new session with both windows and all panels

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    bugSomething isn't workingp5-urgent 🔥Fix build-breaking bugs affecting most users, should be released ASAP (priority)

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