This is a simple thing: trying to find how to revert to a specific history version should be obvious, but it’s not:
- It’s hidden in a separate menu that’s not obviously related (aside from that being how you get to History in the first place)
- The last time you saw that menu, the relevant item wasn’t even there, so you think you’ve already ruled it out.
- The Exit button seems like the only available candidate—but that’s not it, and you’re back to where you started from.
There are a lot of ways you could fix this, but something visible and local to the history, please.
I think I’ll finally remember how now, but I went through several iterations of confusion before it stuck.