I had 2 workers free today and i was happy to start my research at the faculty with that new general, then i noticed i couldn't because it requires 3 workers.
Ok so at least i was happy to be able to build 2 walls instead of 1 thanks to the food, but that is not possible also.
Congratulations, this update is a real mess.
Fire your employees responsible of that mess and hire good ones. It must be the same who are in charge of all the lines of codes full of mistakes and the bugs.