Since today I noticed an unresponsive UI:
1st access: no event history, no clicks possible (buildings, buttons, chat);
2nd access (page refresh): event history available, accepted an invite, done 4-5 aids, then no more clicks possible;
3rd access (page refresh): gone in SG, played 4 rounds, when completed the 4th I'm back in the SG map but no more clicks are possible;
4th like 3rd;
I can see the chat in background, bouncing arrows, and other animations; once become unresponsive, no tooltips are available. And I cannot open GBs (not sure if this is related).