Aaaannnddd the glitch is from CapyReader’s side! Fluent Reader on desktop just grabs the feed from that category. I’ll trying getting the link to that feed again, or another one, to see if that fixes it.
Edit: I have no idea what I did to get this error but it’s okay now! Grabbing the feed from the RRS icon worked fine this time around.
Edit 2: I was almost able to recreate the “issue” but I couldn’t find what I did.