Unreal Engine 5.4.1 Linux Version: Quixel Bridge Proxy Issue

Hi,

I installed Unreal Engine 5.4.1 and Quixel Bridge 5.4.0 on Rocky Linux. Both are the latest versions available.

Unreal Engine 5 seems to be working fine. However, on a PC using a proxy server, I verified that Bridge works normally by entering the proxy in the preferences.

However, when I try to log in to Epic Games, the login window appears but it stays on a black screen with infinite loading. My PC has a very complex setup. I’m not using a system proxy, only a proxy in the web browser.

Here’s what I’ve tried so far:

  1. I set the proxy server as an environment variable in the terminal and then launched Unreal Engine
    5, but the login window still doesn’t work.

  2. I worked with the system administrator to add exceptions to the proxy server settings, but the
    login window still doesn’t appear.

Ultimately, everything works when the system proxy is set up, but due to company security policies, I can’t use a system proxy.

Is there any other good solution?

Here are some logs for reference:

[2024.05.09-08.55.18:854][613]LogHttp: Warning: 0x5ab2b637700: request failed, libcurl error: 28 (Timeout was reached)
[2024.05.09-08.55.18:854][613]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 0 (Hostname in DNS cache was stale, zapped)
[2024.05.09-08.55.18:854][613]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 1 (  Trying 3.211.245.0:443...)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 2 (ipv4 connect timeout after 14978ms, move on!)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 3 (  Trying 3.215.218.57:443...)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 4 (ipv4 connect timeout after 7489ms, move on!)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 5 (  Trying 100.25.55.66:443...)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 6 (ipv4 connect timeout after 3744ms, move on!)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 7 (  Trying 54.152.216.205:443...)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 8 (ipv4 connect timeout after 1872ms, move on!)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 9 (  Trying 107.20.222.148:443...)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 10 (ipv4 connect timeout after 936ms, move on!)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 11 (  Trying 52.206.119.184:443...)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 12 (ipv4 connect timeout after 468ms, move on!)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 13 (  Trying 3.214.186.58:443...)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 14 (ipv4 connect timeout after 466ms, move on!)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 15 (Connection timeout after 30000 ms)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: 0x5ab2b637700: libcurl info message cache 16 (Closing connection)
[2024.05.09-08.55.18:854][614]LogHttp: Warning: Retry exhausted on https://datarouter.ol.epicgames.com/datarouter/api/v1/public/data?SessionID=%7BCDFDA4BD-9834-4F3E-9598-AFB40B7A62C3%7D&AppID=UEEditor.Rocket.Release&AppVersion=5.4.1-33305029%2B%2B%2BUE5%2BRelease-5.4&UserID=41c3b08e25944d4b935bf9d522d37f66-000003e8%7C%7C41c3b08e25944d4b935bf9d522d37f66&AppEnvironment=datacollector-binary&UploadType=eteventstream