@Frequential Does the newly released Proton 6.3-6 fix the launch failure? There was a fix included specifically for this crash :)
Hi there @alasky17, I've tried the 6.3.6 version and the Experimental once again, to no avail.

I get what looks like the same error message as before. I did a reinstall of the game just to make sure too.
@Frequential Thank you for retesting :) Could you upload a new log of the crash with 6.3-6 just in case something changed with the crash under the hood?
@alasky17 It's been a while, but the game still doesn't work, even though it's supposedly been fixed.
The first time after installation and download (including Proton), the game outputs an error similar to the one above, after closing the game and reopening it, though, it shows no error but no windows are created and nothing happens.
To close the game, I have to kill steam via the system monitor or alt+4 and “exit now”. (Not always, for some reason)
I left the game running for a while and recorded the logs.
Proton Experimental: steam-1600530.log
Proton 7.0-1: steam-1600530.log
This is happening in flatpak and the rpm version of steam, I've found no way around this.
Edit: I just checked the files, and nothing has been written to them, I just tried to run the game a couple more times, logs aren't being recorded, It just doesn't do anything.
The UV_pipe_open thing seems to be a electron-logging thing where node or whatever tries to pass stdout to a stream opener when in linux it's a file and blows up. If you pull apart the app.asar file, set electron logging to file, then recompile, you can get past the electron logging issue. I have no idea why, it looks like a modern version of electron, electron logging, etc etc. Maybe its an ancient version of node or something bundled in the app.
HOWEVER, once you get past the electron logging issue, you also get a black screen that immediately crashes to desktop. The next issue you'll run into is this guy:
Proton Experimental: steam-1600530.log
Proton 7.0.2: steam-1600530.log
Real nasty stuff! It's certainly been weird debugging windows issues, I hope this is helpful to someone else.
It works! Out of the blue it works great. Thank you for fixing this, whoever it was who fixed things!
@lutzseverino Could you please retest again with Proton 8.0? It sounds like it could be working now 🤞
I just installed the game on Mint 21, I was only able to get it working using Proton Experimental, on which it runs perfectly. With proton 8 and below, it does not even open.
Note: The current latest stable that I can see is Proton 8.0-2
3D Aim Trainer crashes GNOME to login screen
Issue transferred from https://github.com/ValveSoftware/Proton/issues/8442.
@linuxownz posted on 2025-02-06T19:51:33:
3D Aim trainer running under Linux with Proton Hotfix crashes Gnome 47 desktop to login screen.
When running the training package:
Skills Training -> tracking -> #2 1Cap Small ADS - Mid Long D. Circle 360
If you press esc to exit early, it crashes GNOME, being put back at the log in screen.
After which 3D Aim Trainer doesn't start properly and needs to be re-installed.
Attached is a pic of the exercise in question, the one on the right.
@linuxownz after repeated attempts I couldn't get the game or my session to crash. I tried spamming esc before the actual start of the round (before clicking to trigger the countdown), during the countdown, and after it begins. Tried exiting and going back repeatedly in the same session, and tried all this on gnome xorg/wayland as well as plasma xorg/wayland.
Please modify the trainer's launch parameters on steam so that it becomes PROTON_LOG=1 %command%, this will create a log file in your home folder called steam-1600530.log, open the trainer, get the session to crash and upload the log file (bear in mind that it will be overwritten if you launch the trainer again). The output of dmesg which you can run in your terminal might also show something when the issue is big enough to crash your session.
proton hotfixx1 2025-02proton experimentalx3 2023-06proton 8.0-2x1 2023-06proton 8.0x1 2023-05proton 7.0x1 2022-05proton 7.0-1x1 2022-03proton 6.3-6x1 2021-08PROTON_LOG=1x1 2025-02
Compatibility Report
System Information
I confirm:
Symptoms
The game fails to launch and reports a JavaScript error in a popup.
Reproduction
Install the game and launch.
Log files
steam-1600530 (p6.3-5).log
steam-1600530 (pexp).log