You can try the following to see if there’s a bundle command that is using ⌘Z as the keyboard shortcut:
1. Press ⌘^T to show the bundle item selector
2. Select "Key Equivalent” in the dropdown menu with a gear icon or press ⌘2
3. Press ⌘Z
Now it should show the command or action that is invoked when you press ⌘Z.
When I am using TextMate to edit a LaTeX file, I find that command+Z (i.e., undo) no longer works. Rather than undoing something, it moves the cursor to about the middle of the document I am working on.
Anyone else having this behavior?
I’m using TexMate 2.0-rc.7 on 10.12.5.