I found the culprit for the Icons not showing up on the pop up, it's the "Fanboy’s Enhanced Tracking List​​​​​​​​" filter from uBlock Origin. That is the only filter that blocks the icons,also it does this only on pages FETL is actively blocking something. It would be good if you could get it to work with it if it's possible.
Thank you for the addon, it's great and I use it all the time. I recommend it, deserves a donation button.

FETL github: https://github.com/ryanbr/fanboy-adblock