April 1.Update 2021 [v0.6.4] with Bug Fixes

USABILITY IMPROVEMENTS

FIX: Airplanes at the airport shows errors
FIX: Ready for Match Button caused wrong data on Online Game Connector
FIX: Match without catastrophes has no catastrophes.
FIX: Graphic changes were not saved
FIX: Graphic default value was "Very low". Now it is "High"