Board Thread:Support Requests - Getting Technical/@comment-31714002-20201004103029/@comment-45117243-20201004121650

I looked into it as much as I can, and indeed that seems to be issues with portable infoboxes (possibly it's not even related to UCP, but it probably is). I think contacting Fandom staff as you did is the right action. Since there are a lot of bugs to fix, it's hard to say how much time it'll take until they get to this one.