DRS 18.1.3 Build 8 is not exporting in 4k

My footage is in 4K but timeline resolution is 1080p. When I try to change the timeline resolution to 4k before exporting (like I always do), Resolve is crashing. I’ve tried changing the timeline resolution from both Cut and Edit page. Cut page allows me to change the resolution but crashes when I export the file. Edit page crashes as soon as I try to change the timeline settings.
I’ve already cleared the rendered cache and restarted the computer few times but nothing seems to help. 1080p export is working fine but 4k isn’t.
I’m editing from an internal SSD and have done this in past with no issues. Does anyone know whats causing this to happen?

Cut:

Edit:

Thanks in advance for your assistance.

Cheers
Mo

Studio or free? Only Studio can do 4K, the free version is limited to UHD.

And then, which GPU and how much VRAM?

Studio or free? Only Studio can do 4K, the free version is limited to UHD.

And then, which GPU and how much VRAM?

Studio. Quadro P2000 5gb vram and 32gb ram. I9-9900k 8 core processor.

Sent from my Pixel 5 using Tapatalk

5 GB VRAM is insufficient for UHD/4K.
I'd admit that DR should give a warning instead of crashing, but if you check the system requirements…

I've upgraded the GPU to rtx 3060 12gb and everything seems to be working fine again. Thanks for your help mate. Much appreciated.

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