This solution helped for me.
It seems my cloud save was full for this game. I unchecked it in Steam and cleared some space.
Check this link and follow steps in post #6
https://steamcommunity.com/discussions/forum/1/360672047212137212/
Dunno if it's important, but I also removed the file "Player_RA_settings_1.bin" in my Steam folder.
It can be found in "...\Steam\userdata\271031\1213210\remote".
It will be recreated once the game launches again.
This helped with Red Alert, I've seen people having the same problem but with TD also.
I guess it works the opposit way then.
Gave it a try and it works perfectly!
Thanks!
