Davinci Resolve 17 Studio completly freeze during color grading.

Hi guys,

Works at Davinci Resolve. After some time, 5-15 minutes, when the material is colored, the screen goes blank and the system freeze completely.

Do you have any ideas what could be the reason?

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Catalina 10.15.7 (19H15)

i7 3,6 Coffy Lake

Asus z390-a PRIME

Radeon RX 5700 XT

PCIe Declink BlackMagic