Yeah sadly previous saves are not compatible, that's all part of the engine bug thing. But thank god at least they are compatible within the same game version (except for the 2.5, that's why can't save during the convention)
My download works, there is progress up to version 2.5, the gallery is open. The only thing is that after downloading the save cells become empty.
Technically the update is great, in terms of content it is a bit weak. There are some really good big scenes and the last scene really lacks a continuation. I understand that you like to tease the player, but the suggestion above about the photo in the feed on the left was really good. Something like a photo through a crack in a door without faces would be nice. Otherwise, the feed is a bit unstable. Sometimes several photos appear in a row, sometimes nothing at all for a long time. The girls, except Morgana, who leave do not get any scenes, or even events. If there is nothing there, then why bother with it? Collecting cards is a fun component, but a little annoying. As annoying as it is, it takes a lot of time, but it is unlikely that anyone will return to viewing AI-generated images. So the cards are nothing more than an achievement if there is no interaction with them. It is a bit of a shame that after accumulating the lust scale, the scene changes when you click on the girl and you can no longer view the previous one. From some point on, communication with Avar completely stops. You completely forgot about him

Probably thats all. Otherwise it was a fun and enjoyable update. Thanks) And don't stress, the update is enjoyable enough to replay when you have the option to save.