I am unable to add or remove any LUTs

I totally understand the frustration. Yea, that's a royal pain.

But, having had the problems that many users were having explained, I do understand why the previous management of PrPro made the decision to change the way Lumetri responded to LUTs. Not that I'd have made the decision they did, of course. But it had nothing to do with "lazy" nor "amateurish".

Bluntly, the previous management didn't look at color in PrPro as something that many professionals actually ... "did". So the assumption was that most real pros either were already round-tripping to Resolve via XML or SpeedGrade via EDL, and only the "amateurish" and semi-pros would be using Lumetri. The folks most likely to get screwed up by the way many of us were using LUTs in the PrPro program folder train.

So they were "saving us from ourselves". Don't know about you, but ... I do tend to get a bit prickly with that sort of treatment.

An example of how Lumetri was viewed from inception was that limitation on moving signal past 1 on the bottom or 99 on top ... or even allowing us to touch signal outside 1-99, on account we'd break our media. Yea, it was seen as a semi-pro to amateur ... semi-too.

Which I always argued was a bad decision ... though when I'd be down at NAB arguing with the engineers, well ... I didn't get very far, did I? It was good that got dumped in the 2017 release. Finally.

Take a look at the resume of the current head dude of digital editing products for Adobe ... let's see, to start he and a partner founded Iridas, which became SpeedGrade after purchase by Adobe. Then he ran Project Candy, where that amazing tool to use pics from your phone to create Look LUTs that is now in Adobe Capture came from.

When he took over, they had the blowup where PrPro actually deleted some user files under certain circumstances, and the guy came on here apologizing for a mistake in design (simple but ... nasty in effect) made during his predecessor's term. And went after making that ... as best he could. Fast. As I was in a couple of the threads on that issue, I got a personal email from him (as did a ton of other people) apologizing and asking me to contact him or X department person if I had been damaged.

That ... was ... amazing to get. I actually had lucked out & not been hit by the issue at that point, but ... that wasn't the attitude I ever got from preceding management.

I'm hoping he can turn the color stuff in PrPro around, as he gets a "cycle" or two of development in. They don't have nearly the size of staff working on the program most people think. So they can't really turn on a dime.

But at least, I do have reason to hope now.

Neil