Just an update the image in the carousel changes as i change icon settings in hakabase's (v3) icons in game. Hopefully that helps tracking down the issue.
Hm, might try it again...
EDIT:
NOPE, installed again and deleted cache folder... still the same.
Changing the name of dock.xml... problem is gone!
The mod isnt working properly for me.
1. Remove Dogtags will return in next modpack since I found a way how to update it
2. I am not sure what do you want to say, what is the problem with improved chat v3?
3. No clue.