Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000

[Quetzalcodename]

Hey @DaDon089!

Here is another thread with an almost identical issue to yours with a possible solution. Give this one a try:

Unreal 5.1.0 Preview crashes on startup

Hello, After some research & test, here is my fix : 1/ In C:\Users\yourname\AppData\Local\UnrealEngine\5.1\Config Add : [/Script/UdpMessaging.UdpMessagingSettings] EnabledByDefault=False EnableTransport=True bAutoRepair=True MaxSendRate=1.000000 AutoRepairAttemptLimit=10 WorkQueueSize=1024 bStopServiceWhenAppDeactivates=True UnicastEndpoint=0.0.0.0:0 MulticastEndpoint=230.0.0.1:50000 MessageFormat=CborPlatformEndianness MulticastTimeToLive=1 EnableTunnel=False TunnelUnicastEndp…

I hope the above is the solution you need!