Undo button doesnt work :((

[Political Oatmeal]

I started using opentoonz yesterday and it was working perfectly fine when suddenly

i noticed that whenever i clicked Ctrl+z my actions wouldnt get undone. At first i noticed it with the lines i drew, but then i noticed deleting frames or moving them wouldnt get undone either. I tried looking through the settings to see if it had something to do with that but i couldnt find anything,, but then again im not well-versed with all the settings and might have missed something. The only thing I've noticed it undoes is style related things (creating a style, changing a colour, etc) and those are the only things listed in the history tab too.

If you have any idea as to how to fix this or what might be the problem please do let me know!!! its really frustrating using the software this way :<<

[DarrenT]

From time to time the undo system in OpenToonz stops working. All you have to do is to restart the program. Once it breaks, it doesn't fix and the items in the undo stack become out of order, so undoing can undo something vital, so restart straight away.

[Political Oatmeal]

omg thank you so much bestie!! I restarted it and its working fine now!! ill keep that in mind and i hope they fix this soon :// hope you have a gr8 rest of your day!! <33

[Jean André]

This is happening to me , too.   I'm on Mac , and I noticed that CMD Z (undo) was frequently not working (I also assigned CMD Z to one of my Wacom pen buttons and it did not work).

This is a rather disruptive bug ... that really needs to be a priority to fix .  Until it's fixed that sort of annoying bug deters me from wanting to use OpenToonz (along with some other general buggy behavior).   What a pain to have to break my workflow to restart the program , just to able to use the most commonly used shortcut (Undo) in the world of digital art . Ugh.  

[Jane Eyre]

The undo history does have some issues. If you ever notice specific steps that never undo, or always undo in the wrong order, please report it. Also, keep in mind you can always open the History panel.

Also, there is a preference that automatically clears the undo history anytime levels save. So if auto-save is running, your undo history is going to reset every time auto-save runs. It sounds like this is a different issue, but you can turn off that preference in case it helps.

I'm curious - does clearing the cache folder have any impact if the undo command stops working?