I just noticed that a task disappeared from my project after I used the TAB + P shortcut for “Add to Project”.
It is correctly added to another project when I select the menu entry manually.
But when I use the shortcut, it gets moved to that project, removing it from the current one.
As a workaround I’m using the “edit” and “add” buttons for now, which work as expected:
(sorry, new users can only add one image … )
IMHO it would be better to have that shortcut do what it says.
Maybe TAB+SHIFT+P could be used to “Move to Project”.