BUG : Can't undo paint texture on terrain

Hey, I can't undo the painting on my terrain.

Using Unity 2018.3.4f1

I'm using a custom shader made with amplify, I have 12 layers and a 2048 control and base texture resolution (same for heightmap)

I'm having this error when I paint :
"Failed to create Object Undo, because the action is too large. Clearing undo buffer
UnityEngine.GUIUtility : ProcessEvent(Int32, IntPtr)
"

Thanks in advance for any help,

Jonathan.

 

Would be nice to have some feedback on this, thanks.

 

It would be nice

 

Can you be specific? I used the Paint Texture Undo in my Path Paint Tool with multiple stacks of tools and didn't encounter a problem.

 

Same thing as OP said. I have over 9 paint layers and the same error shows up, not allowing me to undo anything.