Oh right. Unfortunately I’m not sure if I can fix this for good because of how the highlighting is hacked on top of the existing background blend value feature.
I’ve uploaded a new version (0.2.1) with a workaround mode Clear that will behave like the first version (setting the blend back to zero when you focus another track). If you don’t use the background blend on your tracks this will work fine when dragging tracks around as well.
I’ll try coming up with something to solve this in the future but I can’t think of anything trivial right now. For a tool the event of swapping tracks is unknown, I can only observe the fact that the index of the selected track is changed.
About the other bug, Maybe Renoise got confused with the version in the older manifest being lower than the installed one? Don’t know if Renoise checks version at all though. At worst you could try manually deleting the tint folder from your User Scripts folder or clicking Tools/Reload all Tools
That said, it is quite weird that the tool still works while not showing up in the list. Does it work even after restart?