Hmmm... Those bugs were supposedly fixed some updates ago (and they definitely doesn't exist in my code anymore), so I think they show up because you're using old saves. The only remaining issue I can find in the current version is the game finishing once you reach 3rd April (because it was initially coded that way).
It's me again :/
So, I started the game again, from scratch, using the latest update only.
1. Now I can get a lot of art basics points at the river bank in the mornings, so that one is solved.
2. I noticed something new, after I help Emile chase his stalker away at the river bank, the icons with the 4 dates I can ask Emile out on pop up... and they never go away for the rest of the game. I just went back and avoided playing out that scene, since I am not persuing Emile anyway in this playthrough.
3. But!!! I still cant finish the Ferdinand route, or the game. After having sex with him, then going back to his house and he wont let me in, which feels part of his route, if I go to his house the next day it plays out the sex scene again, then the next day (which is April 3rd by the way) I just get the map of Paris but I cant click on any of the destinations. I understand that this is the final date where you can get some sort of ending and maybe I was too slow in progressing Ferdinand's route, so Im locked out of finishing the game.
P.S. Also I could still have dates with Ferdinand and hang out with Henri at the 55 although Ferdinand was supposed to be AWOL and the 55 closed.
I dont know what Im doing wrong at this point... :(
So, I restarted from scratch once more, and I have noticed this:
If I focus my game solely on Ferdinand, ignore everything else and make a routine of working at the flower shop, going to the 55 and visiting his house once available, then I can get the sex scene earlier (on the same day Raoul is visiting) and his route now seems to progress normally instead of gettign stuck.
I'm really sorry, I'm adding another week after April 3rd, but my progress has been very slow due to family problems.
Some of the errors you mention have been already fixed, and I'll check all the others, like the sex scene repeating (lol that must have been so weird!). Thank you so, so much for pointing out the errors so I can work on them, and thank you again for your patience.