I don't understand you, sorryOK, I downloaded and installed the last version 024c and started with the Gina sex scene after which the following played automatically. Did also go to Mr Cooper and started that mission. BUT in the previous version I also played Katia up to a point where it didn't want to go on anymore (after she told him about her virginity problem) I reported this here but a solution was not found. Now i wanted to go there again and see if it works in this version but I find this quest at the very beginning now, when i must buy other shorts to no longer show my dick. All I played before on this mission is lost.. OK so be it, i will replay it BUT, like the first time i have a huge problem finding the time and place when Jess will tell me where to by the shorts.. If i remember well it was a different shop, but it's no longer on the map.. Why was this whole played mission lost and how can I continue?
If you used your save file from the previous v0.2.3c, when playing the new v0.2.4c your status should be the same... if you finished the missions with Katia you should be at the same point, only that the new version, when starting, loads the scene with Gina, but after that you should be able to continue without problems.
In case you have not completed all the content of Katia in the previous v0.2.3c, you'll be able to continue.
If you have used the OP save file prepared to see the new content of v0.2.4c, there are no missions for Katia there, because in the new version no new content has been added for her.
BTW, to know what you have to do in the new v0.2.4c to see all the new content, check the developer notes in the OP.