loader_get_json: Failed to open JSON file / Reading files outside of scope

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Issue can be reproduced in 26.2-snapshot 2. No resource packs, Unmodified Vanilla Client except for custom install path and the following JVM arguments

-Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M

I’m unable to reproduce this in snapshot 2 and 3. I have used a custom directory and the JVM args provided and no error occurs.

Please provide a video showing reproduction steps from the start, including the path of your custom directory.

The video was attached earlier on, I simply booted up the snapshot and there was errors. As of today I uninstalled Mirillis Action from my computer and now that shows up in the error log as well. I believe that in order to see this error, you have had to have a Vulkan enabled software installed and then uninstalled it.

Why Minecraft’s code is looking at these folders I do not know. Maybe it is that there is a local Vulkan file or a Registry on the computer that has paths to other software and the Minecraft code is looking at that file and then iterate’s through each file? That would be my only explanation at this point.

After doing some digging I discovered that there is a Registry for Vulkan that has paths to files, including ones where software has been uninstalled. It seems that the Minecraft Code is looking at these paths.

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ImplicitLayers
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers

Screenshots attached.

Thank you for your report!
After consideration, the issue is being closed as Invalid.

This report does not describe a bug.

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