Issues, but good service

So I got this and was blown away at the depth of library and accessibility. However, I realized there are several app issues, especially when trying to use offline mode. I can sometimes add issues to offline, but whenever I try to remove from offline (you only get 12) it just says "oops!" And gives an issue message and to try later. Please fix, this could be revolutionary!

Collegeguyjourneys about Marvel Unlimited, v2.7.4