I noticed that addon doesn't show interrupts on channel spells.
Example:
https://www.veed.io/view/ecf7c8a3-89b1-495e-ad32-dd079f193269?panel=share

I interrupted penance and interrupt icon didn't show, but you can see that I did inerrupt via portret big debuffs prove (first ran out sillence effect and then it was interrupt effect).

Ofc I did max out prio for counterspell, so it cant be overlapped: