Hello! Thank you for commenting, and once again I think you downloaded the game in an even more perfect moment :D
It is very strange that new version works but old version doesn't work, since I didn't do any change to how the levels are launched - no code was changed, I even had to re-build the game with the same Unity version I used in the past because code issues, so it's indeed very strange.
I have no idea how I could implement a loading screen :D I think I never thought about it, but still no idea how it is done, but I will research about it just because curiosity.
About the new music, it's just that in the past, this My Home game and another game of mine entitled Animals shared music and some things, but with time, I wanted to separate them, so that's why I did these music changes. The old title screen music is the main title music in the game Animals, as it was also in the past :) and thanks for the font, it's pretty hard to find a good fitting font sometimes, specially when so many games, and wanting to give each game a kind of "different vision". If you have downloaded the game very recently, you should find a manual. I've been working on this for all my games. Nothing much special for this specific game since there is not much you can do, but still fun :)
Anyway if you enjoy the music you can always download it for free in my bandcamp. I'm also Anamura in there. Just download the album Animals for main title music, or My Home for the rest of the soundtrack :)