Hi! Hmmm... I don't exactly know what I might be causing this, but is very unlikely to be a version related error, since I've tested the addon in almost all versions till blender 5.0, and it works just fine.
The error you see, arises (sometimes) when you try to add a node that hasn't been added yet. This is because under the hood the addon appends a node from another file if it is not already there (in the current .blend file as a node group). And "appending" is not something you can do while in edit mode (or in other modes that I may not know of). So... try this:
Make sure that you have blender in a state/mode where you can append things. This might solve it!
If not, then try uninstalling the addon and installing it again. Maybe even use a couple of friends' computers for testing and suggesting the addon to them :)
As last resort, try upgrading blender to 5.0
Hi, I don't know if you can help me but I have a problem when I try to use it, when I try to add the node a message appear saying "Failed to add node. Exit edit mode" even though I am not in edit mode, I am using blender 4.4