Stories not going into my shelves

Two stories I've added as current reads haven't shown up. One was added a couple days ago, and another just today. Both are listed as "currently reading" on their story listing pages, though -- they're just not popping up in my shelves.

A story that I added a few weeks back is visible, so I'm not sure what happened.

Thanks for any help in advance.

Checked today, and the issue seems to have either resolved itself or been resolved.