The file will be called save01.RVDATA2, replacing the 01 with the number of your save game in the list. I don't think you can attach files here, so if you email it to saintalancias@outlook.com, I'll get it, otherwise if you're on Discord, you can find me in the public chat.
Also, have you used a save editor or been able to access the playtest area? (Some builds have had a transfer to it in Missy's room that was left in by mistake.) It's important that I know if so as these could have caused the bugs.
Sent the file but haven't heard back. Just entered the game and played a day as a test. Finally got the Poppy storyline continuing, but still confused about the lack of the money for the costume. Can't go into the house without buying, that means I finished the bit that is supposed to get the money; but I still have only 24 credits.