I can't seem to recreate your problem. I've tested it on windows and android and both work fine and all the functionalities are working.
Are you on MAC? even then it should work exactly the same as the windows version.
If you downloaded the MAC build from your itch library or supporter links yesterday and it's the "market" version, try downloading it again. I update it a few hours ago with a standalone MAC build, maybe that'll fix your problems.
I would need more information for further troubleshooting, you can email me at itchv19games@gmail.com You can also just ping me on the discord server.
As for the extras.
It makes no sense to save in the extra scenes, so that's intended.