CGER888
December 28, 2022, 2:16pm
1
I’ve tried everything and nothing fixes this crash. This is what happened the first time I turned on the engine after updating to 5.1.
LoginId:98daf8844b7bf02a39e7e2b8e99b6d89
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000
UnrealEditor_UdpMessaging
Hey there @CGER888 ! This is extremely late, but at least leaving this for anyone who finds this thread while looking for this fix:
For anyone getting this issue here’s two possible workarounds:
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…
For others that finds this thread hoping to solve stuttering in Unreal Engine Editor, go to your Project Settings → Plugins → UDP Messaging → EnableTransport (Set this to false).
This solved it for me, I had the Editor FPS drop happen in 4.27, 5.0 and 5.1, no content browser up, empty scene and no blueprint windows up.
PC specs: 3080Ti, 128GB ram, threadripper CPU (24cores) and so forth.
PS: More info, UDP is related to network settings.
If you are using a VPN that might cause this issue too…
