Probably9857 There is an open issue for this here, that also mentions a workaround (use the Edit tool instead). https://github.com/GrapheneOS/os-issue-tracker/issues/2893 In general though, I don't think the default gallery app is very actively maintained, so it might be better just to install a 3rd-party gallery app if you want a better experience.
Lukas That workaround doesn't work either. Anyway, I just got Aves Gallery from Accrescent because it seems that nobody cares about the default gallery app, and it's just left to rot.