Check the comments here:
https://www.esoui.com/downloads/file...=2349#comments
The user Tigertron explained how he is able to rebuild it. Seems to have to do with the vendor sell tab, not sure why though. Maybe the button's child control for the flash animation needs to be added several times for different panels, but vendor sell and inventory are both the same soI do not get it...
Have posted an updated version, hope this fixed it.