Ok I see the problem. If you didn't do 100% of all you could do in v5 (or prior) and then continued with v6, the save is gonna get fucked if you don't finish v5 stuff before v6 I guess, because apparentely the game is designed to do stuff from each version before continuing, and if you go out of order it gets screwed at moments like for instance if you have a forced scene at night with mom or caroline. So... It's kinda bullshit. The game implements so much fucking grind to get money, wait X time of day, do X action and come back N days later to perform it again to unlock the situation, etc but if you go out of order between versions you're fucked and have to do everything from scratch... I guess I'll just wait for v1.0c in 4 years
For those who want to import someone else's save : do a save on a page where you have 0 save, let's say it's page 9. Go to your save folder, check for something that looks like it's this specific save (it has something like 9_1 in its name). Copy its name, delete the save, put the downloaded save there, and give it the name you copied. The downloaded save should be where you had your save