Recently I was playing SU and for some reason all the countries in the Chinese area were doing individual truces with Japan. Then a problem I noticed before where Germany can't take countries like Poland so I have to fix it with console commands has been made worse and now Germany can't even blitzkrieg Belgium, Netherlands and Poland. Then because of this, Germany signed a truce with the allies to end the war then the Netherland declared war on Slovakia making it the Netherlands versus the axis.
EDIT: Also UK no longer puts troops to deffend North Africa.
EDIT 2: In fact, it seems that the AI has suddenly become worse and Africa has become a hell hole of terrible avoidable encirclements for both sides.