I don’t get any crash in 4.27.2 (at least Editor keeps working) when I switch from SM5 to Android Vulkan preview and back. The only thing that happens is that Editor simply won’t switch. So say I am in SM5 and I select Android Vulkan in the menu. Menu would close, nothing would happen on the screen and when I would go back to the menu - it would still be showing SM5 option selected.
I don’t recall what happens in UE5p2, I can check when I get off work. If there was a crash, I am fairly certain I pressed button from the crash log window.