Display issues on site with imported yahoo group topics

Check out these screenshots - I’ve tried a few things including safe mode, changing themes and uninstalling unsupported plugins, but I am not able to get rid of these display issues. User avatars are missing or misshapen, and the “suggested topics” below posts is crunched to a fraction of its usual width. Does anyone recognize this or have a suggestion? Thanks! :seedling:

Looks like a CSS issue to me? Does it happen in safe mode?

Yes it happens in safe mode… a puzzle.

This is a multisite and I have some plugins disabled here but active on other sites, including some unofficial plugins. Not sure if one of those could be a culprit. Will look at it again tomorrow.