Render Errors in Resolve 9

[Bertrand Leclipteux]

hello,

I have the same problem with HD footage.
I get artefacts (yellow, grey, black) when I playback or render.
I rendered at 5 fps but the problem is still there.

My macpro is a 2,1 from 2007 and I can’t change now. (I can’t upgrade to 10.8.x)

Is there a solution ?

https://clair-obscur.be/pics/artefacts-1.png
https://clair-obscur.be/pics/artefacts-2.png