0.3.5.5 had a bug that could cause B.I.T.S. to become duplicated many times when using the new undo feature. The problem is fixed now in 0.3.5.6. Sorry about that!
One other thing: if undo isn't working for you, go to the input configuration screen and click the button at the bottom to reset to default. That'll force the new Undo key mapping to load.
And as a recap, here's what was new in 0.3.5.5:
This week we've got something (hopefully) very useful: undo in the simulation deck. Just hit ctrl+z. You've got 100 levels of undo now, so no more worrying about messing up your patterns!
Here are a few other things we changed:
- Simulation tab is now the default screen shown when pulling up the Omni UI on the simulation deck.
- Fixed a bug where publishing to Workshop sometimes didn't publish the latest changes.
- When loading a pattern, fixed the pattern's position sometimes being shifted to somewhere else (sometimes too far off in the distance to even see it). There was no way to automatically fix patterns that had gotten shifted like this. So if you want your old patterns to be positioned where you can see them when you load them, the easiest thing to do is to load your pattern, then press the button to clear it (you'll still be able to place it), then place the pattern, then save it out. You may especially want to do this and then re-publish your items if you've published anything to Workshop, so that users who download your pattern will see it right away when they load it.