Just tested in 1.8 and was able to reproduce again.
It looks like they fixed it somewhere along the way, as I just tested it again and it is no longer an issue as of snapshot 14w11b. However, before anyone joins the newly hosted open-to-lan world, the TAB list is still inaccessable. After at least one player joins, the TAB list becomes accessable, and stays that way after said player leaves. This is technically a bug, but it is not a big issue. You can mark this as resolved.
Okay, I'll restart it. Thanks!
P.S. It was STILL doing it XD...
So should I just restart the server then(it's still doing it)?
The textures also update when a block is placed/broken.
I am currently experiencing this issue on 1.19.4 (Java 17.0.3 64 bit Windows 10), has this bug been re-introduced since it was resolved?