Yea idk what to say. 13 weeks to create a game 2 weeks on updates to improve it and its broken in a seconds 
I understand things change ect but it should never break published versions
I requested before 2 versions one for publishing and one for session so you can test things ect then if all is good publish a new version with the new patch enabled this would solve so many game breaking issues. When you have very few players this is enough to stop them playing the game fully and all your time and hard work is gone with no return just wasted nearly 4 months of your life to be stopped by something out of your control. So frustrating ngl