I checked the browser console, and the call to https://api.mangadex.org/manga has the Mature titles included in ids, but the data field in the response doesn't include any of them.
I have a bunch of manga stored in my re-reading tab of my library, 407 actually, but the manga are not showing up. All the other tabs work except this one. I have all explicit content on and it still doesn't work. Is this a known Bug?
Were all your Manga's in that Tab with the "Mature" Tag by chance? If yes, then that might be the issue. Because I found a different post where people also had "Mature" tagged stuff not show up anymore.
And it's the same for me.
Same deal. Says 99 titles in the list, but only 2 non-mature showing.
Mature tag works fine in the Advanced Search.
Just the library appears to be bugged.
I just checked after a few Days now, and it seems like it's fixed, I can see the Mature Manga in my Library again. At least in the Tab where I could before see 0 out of 66.
