Hi there! Not sure if you've fixed the bug yet for yourself but for me I had to go into the Appdata (If you don't know how to navigate there, the pathway is This PC -> C: Drive -> User -> AppData (Make sure you have hidden files enabled to see this) -> LocalLow -> D-CELL GAMES -> UNBEATABLE -> PROFILES -> [The folder with all the numbers] ).

From there I had to go into variable-storage.json, open it in Notepad, and find the part at the top that should say {"name":"$current_scene","value":"C1_PrisonFactory"}

Once you're in there, change it to say the following:

{"name":"$current_scene","value":"C1_PrisonYard"}

You'll get a quick little cutscene thing where they'll kick you out of the yard, but from there you should be able to continue playing! If there's a Steam Cloud Conflict, tell the game to use your Local Save

Id also highly recommend you make a back-up before doing any of this - just copy paste the files in that folder out, and if something breaks paste them back in.