Thanks for reply .
For reference, and hopefully to help anyone else:
4.9.2 – using create session node, Lan = true, Connections = 2
Editor preferences → Network → Auto Connect to server = True
Result = You will be able to host game on ‘server’ window and ‘client’ will be able to connect successfully. If you try to host from client window, it will fail (expected I assume).
Editor preferences → Network → Auto Connect to server = False
Result = You will be able to host game in one of windows, but other one will not be able to connect. You will get a dialog box pop up in bottom right warning of an error:
Warning TravelFailure: LoadMapFailure, Reason for Failure: ‘Failed to load package ‘/Game/Levels/UEDPIE_2_GameLevel’’. Shutting down PIE
You will be gracefully returned to editor.
4.10.4 – using same settings as above:
Auto connect = true. You will be able to connect to server fine, even if it is running a different map. client will correctly load level. This is same as 4.9.2
Auto connect = false. You will be able to host game, but as soon as client tries to connect, editor will crash.
If you compile game, you will be able to test that game works in a real server / client relationship. You will not get a crash when it is packaged, even with 4.10.4.
This crash in 4.10 (UE-27242), along with UE-27124 bug from 4.10.3 meant this was really difficult to troubleshoot, so I hope you’ll understand why I thought this could have been a regression. action of joining server means that both UE-27124 was present (open 127.0.0.1 in Blueprint in this case), and UE-27242 in form of trying to test our game in a server / client relationship inside of editor (and not using auto-connect)
Thanks for prompt reply. It’s very problematic for us to build and deploy another version across our network separate to launcher, but that’s another issue entirely.
Regards