When passing TweenService:Create() a boolean value for properties that normally accept numbers, either client or server will crash depending on which runs the code.
The following code will cause a crash in the Player, but in Studio it will rapidly spam output with the error , so this is probably just a sneaky exception. Edit: Recently, Studio now crashes due to this issue.Variant cast failed
game:GetService('TweenService'):Create( workspace.Baseplate, TweenInfo.new(1), {Transparency = true} -- Passing a boolean to a float property ):Play() Note that this only seems to happen with booleans passed to properties accepting numbers (int / float). Passing any other incorrect data type does not cause this issue.
Discovered by @TheFurryFish.