Exports coming out all broken?

[AugmentedOwl]

I just bought a new computer and have been using it to create thumbnails for my videos as I always do. This computer is windows 11; and it is much more powerful than my last one. Problem is, well, see for yourself. 

Every image is not able to render correctly upon exporting with my default settings; dithered png. I haven't tried any other methods yet but that is the best way to get a picture which isn't too big for youtube and was what I was using before. I also tried non-dithered png as well- and played around with the other rendering settings and nada. In the end the only way I could get the image out was taking a snip of the affinity picture as shown in the third image. 

Help, please; I have no idea what to do.

 

Edit: Nevermind; I finally found the hardware acceleration turn off button and it worked; but why is turning off hardware acceleration so important, shouldn't it make things better- not worse?  

Edited April 1 by AugmentedOwl
fixed it.

[AugmentedOwl]

My specs are as follows; all recently updated driver wise and a fresh windows install.

9950X3D CPU, 

96GB DDR5 Ram

5070ti (wanted 90, but you know how things are right now)

all being used on a PCIe gen 4 ssd. 

[Komatös]

Hi @AugmentedOwl and welcome to the forums.

The HWA is used for the real-time display of adjustments, filters and effects. It is also used for a few internal calculations and for the UI. However, your hardware is already so fast that the HWA leads to bugs here.

In Affinity Photo there is a benchmark (Menu -> Help -> Benchmark) that you can run once with and once without HWA. 
I think that the test results will not differ significantly on your computer.