Preview looks dramatically different (wrong) when I enable CUDA

[lflegg]

This has been plaguing me for years in Premiere. 

Can I just not trust CUDA to render anything remotely close to accurate preview?

Any tips super welcome, thank you!

https://drive.google.com/file/d/1HaCqejvb2y7bRzDKZGrwdsMIVsf5wyhY/view

[lflegg]

Oh wow. 

The actual exported file demonstrates the same dramatic difference as the preview monitor.

That is... incredible.

I'm using the latest drivers on my nVidia GTX 980m

and latest Premiere.

[MyerPj]

I can confirm what you are seeing. It does the same thing with an effect. I saw the change in the effect brightness when using Key Frames stretched out along the clip and I tried stretching out Film Dissolve, Cross Dissolve and Impact Dissolve and they all do the same. (PP 13.1.4, Win 1903)

I doubt anyone had in mind switching renderers mid edit, nevertheless, it does what you are saying. 

You can post a bug over on the User Voice system, which the Engineers monitor. Post a link back here so we can up-vote it.

https://adobe-video.uservoice.com/forums/911233-premiere-pr

[lflegg]

Thank you.

So I guess the least bad workaround until this can (finally, after many years) be sorted out by Adobe is to adjust keyframes/ effects accordingly: eg. fade in text in my case here in a way were you recognise 5% opacity will look more like 15% so an extremely eased in spline curve is required.

You can Vote up my bug request fix here:

https://adobe-video.uservoice.com/forums/911233-premiere-pro/suggestions/38707612