If you had saves from before you to need to make sure you deleted the entire save folder in the app data directory. That is something on your end as no one else has reported anything like that.
You've got it wrong, Steam is less Draconian than Patreon, Steam is fine with incest, rape, blackmail, and so on. There is NOTHING censored in the Steam version, the same goes for most games, in fact most games on Steam get incest by default or the patch added with it. People need get this preconceived notion out of their heads that Steam somehow is a censored version.
Steam ONLY cares about underage looking characters/content, high school (which goes back to underage), sex in said school (except in rare cases) and content that is copyrighted, like say someone using movie posters (Timestamps) or movies playing on a TV in the background that they don't have the rights to.
Direct quote from the dev on Patreon, the only difference is that the Steam version is missing some dumb mini-easter-egg hunt. Steam version is fully unlocked to, no codes or nothing needed and has all the premium content with it to.