Research tree broken

Maxed out research to V in US tree, only had 200k lions, could not purchase 3 tanks to be able to research another tank (in VI). Game was stuck in limbo with “Character save error”. Had to end task to get out of WT and restart the game. Thankfully it didn’t go back into the research screen and get stuck in the error cycle again.

Is this game ever going to get out of beta? Is there a road map to release?