I feel that there should be one of these.(to sort all the bug posts into one topic)

Here's all the bugs I currently know of.

1. worldbuilder.lua fails to run now
2. names of replays/multiplayer fights get locked when transferring to singleplayer (you/someuser vs someuser instead of reverting to you vs Uke)
3. ukebot.lua randomly makes Uke completely disappear from gameplay
4. shift-p frame by frame not working
5. the menu sometimes doesn't come up upon pressing esc
6. now the left foot along with the left forearm display no gradient
7. the incomplete Torishop also makes Uke disappear
8. hud disappears along with Uke during disappear bug
9. Uke's physically still in the same place(disappear bug)
10. I saw that some can't connect to multiplayer with 3.1-beta

Screenshot of disappear glitch(I drew in the estimated head's position):


Please post a bug only if it is linked to one already stated(multiple ways to trigger the bug), or if the bug not listed.