Had to refactor the GameDB to use a list of levels instead of a vector of levels. If you get a _reference_ to an element of a vector, and then resize the vector, you'll get a crash if the realoc moves the data buffer. Using a list is actually what we want.

systems.cpp

@@ -257,7 +257,7 @@ void System::combat(int attack_id) {
     battle.plan();
   }
 
-  battle.dump();
+  // battle.dump();
 
   while(auto act = battle.next()) {
     auto [enemy, enemy_action, cost, host_state] = *act;