Okay mainly its a minor bug, but might as well point it out. When you add a row to your reading list, it becomes highlighted. You wait a while, click refresh (or "reload current page" in firefox), if there are new releases the highlighted ones are correct but there are still check marks on the same row the highlighted ones were before the reload. Though its easy to resolve just by opening a new tab, i feel that it should be fixed either way. Anyways as I said before its a minor bug.
I had a hard time trying to replicate it, but I do know what your talking about I've had it happen to me a few times. If you can grab a screenshot of it next time it will help~ (I don't know if tony will need one or not but it can't hurt!)
I tried replicating it as well to get a screenshot, but i think its fixed now. Not sure if anyone did fix it, but the bug doesn't seem to appear anymore. I will post again if it occurs again
Nothing was fixed. I haven't seen this problem myself so I'm really not sure what's causing it. If it happens again, let me know and I'll see if I can recreate the problem.
I got it to happen while I was going through my reading list. So I ended up tagging a bunch of stuff I finished reading, then accidently clicked a link, and backspaced too it, it kept the check box's in the same position, but also removed the stuff I'm hiding there for making the box's mark something else.