Unable to mark some channels read

I don’t know if I’m doing something wrong or if there’s a glitch. I can’t seem to get the talk bubble icons to gray out when I mark a channel or subchannel read. It seems like it works for me sometimes, but not all the time.

I’ve also had that happen from time to time.

I’ve noticed it from time to time as well. I think it may be a “cache” issue as I look on a different device and they are fixed.