I think worth to break-down the PL9 issues. As if someone just crawl thru the forum, may think ‘nothing works’ - what is definitely not true. Following is under Windows.
As i see (my standpoint of view) the following the ‘main’ areas
- Misc
- Voodoo stuffs
- OS issues
- GPU VRAM amount
- GPU driver issues
Regarding Misc - like Export sometimes has issues, etc. - i don’t think its a deal breaker. The ‘Voodoo stuffs’ i think its some other issues, like overclocking, some other app cause (like RivaTuner - i read this in C1 support page), may some unfortunate constellation, may multi GPU issues, etc. OS issues - i cant say too much about that - i just read a few weeks back this Mac OS stuff - unfortunately is as-it-is.
GPU VRAM amount.
And i talk free amount.
For 10-12-16GB GPU seems everything works fine.
I think <=8GB can raise issues for users. For some 6GB is just fine, for some
All AI and DP (DeeprimeRendering/Loupe and Export) use GPU VRAM, and not all use the same amount. DxO write in the specs: DP3. And not say DP XD2s - as DP XD2s us more GPU VRAM than DP3. And so on, like ‘Pre-defined’ AI masks use far more tha ‘Manual’ AI, etc. As PL9 can work even with under spec GPU VRAM amount (4GB) - only with ‘Manual’ AI masks and DP3 - but can work (until you know what’s your limits with 4GB) - DxO 9.2.1 + Manual AI mask + DP3 NR Export can work even with 4GB GPU VRAM!
I write a few comment about my calculation about usage like in here, here - i not update it, but at general i think its more-or-less still valid. At general - if you know what is the ‘max’ than PL play nice.
Lot of other things can affect. May not everyone realize the ‘free’ amount is what PL can use. Web browser playin music from Youtube in the background use it, even
the cutie ChatGPT client use some, etc. See some example:

Just average things running, and whopping 1.4GB already used.
GPU driver issues
In my previous comment i go on this in some depth, so please see in here:
