I had issues with many of my favorites, many did not worked at all, not triggering the settings panel to open.
This happened after i updated the filters list in Gmic, then i realized that the names had slightly changed, the plugins composed of 2 or more words have now capital letters on each word, wasn’t the case for many of them earlier, like for example “Auto balance” became “Auto Balance”
Somehow those little changes messed up all my favorites having names using more than one word, when clicking on a favorite plugin from the list it had no effect, not opening the corresponding settings.
Had to delete the ones having issues before adding them again from the main list of plugins, this time with the names having capital letters on each word.
Took me 2 hours to figure out what was going wrong