Unigine Superposition -What is DXGI.DLL error?

Halo.

When using Unigine Superposition 1.0v

Sometimes i get app error Superposition.exe dxgi.dll error in event viewer. Its sometimes when i exit to desktop from GAME MODE or benchmark mode. Or when i alt tab to desktop and back again to test, it crash too with that error log in event viewer. But exiting is normal ,just that log same. No driver crash,by the way.

During test all is fine, i have scores. Stress test mode passing fine too.

Desktop 1440P res. Benchmark/game mode / 1080p

Testing Unigine Superposition 1.1v no error.

If i can ask. What is dxgi.dll error? And why it was appeared on 1.0 version. During quitting benchmark or alt tabbing back to test.

Meine pc:

Monitor:AORUS AD27QD

Cpu: i7-9900K stock 4.7 with Noctua NH-D15

Gpu: Rtx 2080 Ti Aorus Xtreme Waterforce ( stock no oc,temps max 63C on load )

Ram: 32gb 2x16 GB DDR4 GSKILL 3000MHZ XMP

Psu: Seasonic Ultra Prime Titanium 850W

Monitor: AORUS AD27QD

SSD: Crucial 1TB

HDD: WB BLUE 1 TB

Case: Cooler Master Cosmos C700P