With the @task_unique(name) decorator, the task name is set to ['<name>'] instead of name. task.unique(name) sets the name correctly which means that mixing the two behaves unexpectedly.

Test code:

@time_trigger @task_unique('test1') def test(): task.unique('test2') log.warning(task.name2id()) 

and this is logged

{"['test1']": <Task pending name='Task-2691674' coro=<Function.run_coro() running at /config/custom_components/pyscript/function.py:448>>, 'test2': <Task pending name='Task-2691674' coro=<Function.run_coro() running at /config/custom_components/pyscript/function.py:448>>}