I have this problem. when I grab my current tool in a custom panel, the soft stop wroking

I capture the situation: https://www.dropbox.com/s/8fox1v6ey4eo2 ... g.mp4?dl=0
Hi Dean, thanks for answer.
Hi Svengali.Svengali wrote: ↑15 Jun 2020, 22:20 Could you package your custom panel of animbrushes into a .tvpx file and upload it for the TVPaint people to download and test??
Questions:
1.Does TVP lock up if you save the animbrush to an existing panel?
2.Your cursor is still active, so TVP isn't frozen, is it that you just cant load the new brush in the new panel, or can you not load any actrive tool from any panel?
3.If you cursor over the new tool and right click does it open the tool for editing?
4.Can you do any other operation like for instance right click on custom panel then delete it?
5.Does TVP only lock up if you try to save an animbrush to the new panel, but still let you save any other tool to the new panel.
6.What happens if you copy an existing animbrush the paste it into the new panel?
7.Previously, were you at one time able to create and save a custom animbrush in a new panel? Do you remember changing anything that caused the symptom you demonstrate in video?
sven