LUTs in Premiere Pro stopped working and clips that have LUT applied revert back to LOG if touched

That is most distressing you're having such problems with LUTs. I've never had that ... and yea, I've had all sorts of other issues with Premiere! ... but never this. Sympathy, that would be maddening.

Are you using 22.6 perchance? That version was pulled from availability due to so many issues, and though they left the 22.6 of Ae, Audition, and Me "up", currently only the 22.5 Premiere is available. I'm on 22.5.

But whether 2019, 2020, 2021, 22, or the 23 public beta, I'm not having any issue with LUTs at all. I can apply them, typically in the Creative tab for reasons oft stated, and use the Basic tab to trim the clip into the LUT and the Curves and Wheels tabs to control the look after the LUT.

But I never lose the effect of the LUT. Which has me wondering what the freak goes wrong on your system.

BlackMagic's CEO/owner, Grant, seems to be a really good guy in many ways. I love the BlackMagic cameras, and of course, their Atem mini switchers are also amazing for the price. And they make some good LUT boxes for interfacing your computer and display at reasonable prices.

But his and his company's attitude towards other companies is rather ... narrow. They make hardware, and sell software to encourage hardware sales.

As you said, "The company cares about the customers who use their products." ... and their product for this is Resolve, not Premiere. They "support" BRAW in Premiere in the same fasion they "support" Tangent/Loupedeck panels in Resolve: in a limited fashion. "You can work with it, mostly, but if you want good work, use our products in toto" is the full message.

So for instance, my Elements panel ... made by Tangent ... they will sort of allow the use of within Resolve. But only in ways they control, and, intentionally, more than half the controls are 'dark' and not connected at any one time.

Plus it has a very odd ... menu system. Don't like it? Buy one of their panels! Which ... also by intentional design ... only work with BlackMagic products. And yes, that is by stated design intent talking with quite a number of BM staffers. They have zero interest in any BM panel user using that panel with anything but Resolve. Or their editing keyboards.

Their BRAW plugin for Premiere works ... but ... their support for those using it in Premiere is very limited. As one would expect, if you spend much time with BM stuff & staff.

Autokroma makes both an 'equivalent' freebie BRAW plugin for Premiere, and the one that is under $30 still for the full all-options deal. Both in my experience are more stable than the BM one. And Autokroma IS the place to go to for support for BRAW issues in Premiere no matter which plugin you use, theirs or BM's. As they actually give very good and detailed assistance for all of the issues one can run into.

So even as a (generally) "happy" BM customer, I never suggest one use the BM freebie plugin for BRAW in Premiere. You can get both free and deluxe versions of the BRAW plugin from Autokroma, AND ... you get both good behavior of the plugin and excellent support for that within Premiere.

And yes, I've asked questions of BM staffers at NAB about issues with their plugin ... and they simply shrug and say if it ain't working good, try Resolve. Yup.

Neil

I know, I've never had this happen. I've been working with BRAW out of the BM cam a ton and never had an issue with LUTs

Working in Pr version 15.4.5 I was in 15.4.1 when the treouble started and was hopeing that an update would resolve but the update to 15.4.5.1 did not do the trick.

I am using an Arri LUT "Arri Summer 6220-2 look rec709.cube" 

I usually just choose "Browse" and aquire it off of one of my external SSDs (that's where the LUT lives, it's not on my computer)

However...

I do remember coping it into the "creative" folder (along with some other LUTs) to access it more easily in the Lumentri dropdown menu, but it never showed up in the dropdown menu, so I kept choosing it through the browse option.

The BRAW plugin is the freebie from BM.

Thanks Neil, any insight would be greatly appreciated.