trello extension not working, problem with input element?

[Susan Ebeling]

There is something wrong with at least one of my trello boards. they work fine, but any extensions (chrome or firefox) are not working anymore because of this. Even in incognito mode the features only show up for a second and are gone again. 
I do not understand what is wrong and i don't know how to fix it. 
Is there someone who could help me with this or tell me, where would be a better place to ask for help regarding this. 

thanks a lot
Susan

[Rasmus Wulff Jensen]

Trello did a recent rework of all the HTML behind the boards (leverage a new drag/drop engine)... This caused a lot of extensions to break, so best is to contact the creator of the extension and see if they can fix

[Susan Ebeling]

Ok, thanks. I'll try that.