Some possible lines of interest:
[00000130:] EXCEPTION handling: System.Runtime.InteropServices.COMException:
[00000130:] EXCEPTION handling: System.InvalidCastException: Specified cast is not valid.
266418.636:012c:01b0:err:wininet:open_http_connection create_netconn failed: 12029
[00000178:] EXCEPTION handling: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
266427.546:0360:0364:fixme:steamclient:manual_convert_Set_SteamAPI_CCheckCallbackRegisteredInProcess_func_156 not implemented!
I'm most suspicious of the wininet line.
Thanks for looking into this. I guess based on that error this isn't something that can be fixed client side and it requires a function to be implemented in proton?
Nothing extracted yet.
Compatibility Report
System Information
I confirm:
Symptoms
The game loads fine, but when trying to log in, the game says the handshake with the server has failed (screenshot attached). Originally i thought this was a networking issue on my end, but i have ruled that out by using a windows PC on the same network using the same steam account and the game works as expected. I also did a packet capture on my LMDE desktop and can see the tcp requests going through and im getting a response, and can in fact visit those urls in a web browser and get back the token (these requests go out to a http server on port 80)
Reproduction
Attachments
steam log: steam-2857560.log
screenshot: