• Steam client version: 1751405894

• Distribution: Linux Mint 22.1

• Opted into Steam client beta?: No.

• Have you checked for system updates?: Yes

• Steam Logs:
  logs.zip

• GPU: NVIDIA RTX 4070 Ti SUPER / Driver version 570.133.07

Please describe your issue in as much detail as possible:

Steam crashes when using ACES instead of Filmic/AgX in Blender.

With Blender becoming more popular by the day, it's normal that many artists/studios will continue their pipeline as much as possible in the new software, and that includes using well established LUTS/OCIO configuration files such as ACES so that the look between e.g. Maya and Blender are the same and that no textures need to be changed for the new LUT/OCIO.

However, Steam crashes when using Blender with ACES during certain simple operations. The operation described below is only one instance of Steam crashing, it will crash many times per day but unfortunately I can never catch when/why.

Steps for reproducing this issue:

1. Download ACES 1.2 from this repository. You can also get it from Substance Painter's folder;
2. Extract the downloaded zip file;
3. Navigate to "OpenColorIO-Config-ACES-1.2/aces_1.2";
4. Copy the folder "luts" and "config.ocio" to the clipboard;
5. Navigate to Blender's root folder, then to the {version} folder (e.g. "4.4")/datafiles/colormanagement";
6. Delete everything inside it then paste the previously copied items from earlier (item 4);
7. Open Steam;
8. Launch Blender through Steam;
9. Open another instance of Blender (without steam);
10. Copy any color HEX values (e.g. from a material, #B05646FF);
11. Steam will crash.

Here's the crash message from the terminal (last line): https://pastebin.com/raw/xPU1qARZ

I also recorded a quick video showing the problem: https://www.youtube.com/watch?v=fRm2McrsjSM