Studio crashes growing a descriptor heap

Studio's D3D12 renderer ran out of descriptor space and crashed.

What you see

Studio crashes every few minutes.

Who's affected

Seen on a GTX 1650 Ti laptop using D3D12 in July.

What to do

1. If your Studio has File > Settings > Studio Settings > Rendering > Graphics API, set it to Vulkan and restart Studio.
2. Newer builds may have hidden that option. If it's gone, update Luduvo and send the report below if it still happens.

Status

There's a workaround, listed above.

How the Doctor spots it

It looks for log lines like these (patterns, not exact text):

• [nvrhi] Failed to grow a descriptor heap

Sources

• Report forum
• The fix forum
• Confirmed forum
• Option hidden later forum

Credits

• alaz, found the Vulkan switch
• zxenowc, confirmed it

Last checked 26 Sep 2026.