Can't create trade routes in campaign and freeplay without addon (Still need to provide log but I can't get the game to launch because of the issue described above
It works ootb with Proton Experimental for me. No need to set DX9 in the Engine.ini it works with DirectX 10.
With Proton 8.0-2 the Ubisoft Launcher crashes.
Compatibility Report
System Information
I confirm:
Symptoms
Reproduction