Frost-for-Facebook VS tachiyomi

It's not EXACTLY what you're looking for, but might do. Frost for Facebook is a pretty good alternate app and still works. https://github.com/AllanWang/Frost-for-Facebook

I also use Frost, love the glass theme.

Facebook: Try "Frost for Facebook". Just updated, even the messenger works. https://github.com/AllanWang/Frost-for-Facebook

Check its Github

Tachiyomi[0] is a FOSS comic reader app for Android which has support for extensions to source comics from different sites which are unrelated to Tachiyomi

Tachiyomi already removed their extension list which contained both unofficial and official sources for comics[1]

[0] https://github.com/tachiyomiorg/tachiyomi

if you are on android: https://github.com/tachiyomiorg/tachiyomi then google for which extensions to look for marvel wise, they have most/all as i read them before through there.

I think you are right about it being a cache issue. I wonder if it is related to this: https://github.com/tachiyomiorg/tachiyomi/issues/8827

I don't use it, but if you're on android look into downloading Tachiyomi. Lots of people recommend it on this subreddit and it looks pretty customizable. It can pull from the different manga websites out there I believe.

Install from official site: https://tachiyomi.org