Palettes are not opening automatically with AVA
Check that the files are saved in a location that the Application has access to. You may need to check this in System Settings under Security and Privacy.
Palette is not working as expected
The best way to check a palette action is open it and run through the actions one by one checking each does what you intent individually / one by one. If your palette is going to be used by other people it is worth testing it with a few different files to check that different layer types or names do not break the action.