Lumeri presets suddenly not working

[christopherm13668766]

Suddenly, practically overnight, Lumetri has become almost useless. I'm usually able to get it to work on one clip (a pathetic 10% or so success rate, other times it simply shows no effect on the image regardless of sliders) - but cannot copy that effect to a new clip. The brightness & contrast sliders work, but the actual LUT and any other Lumetri values are ignored. When i'm able to get an effect that works, it seems to make an extra copy of the effect (so, two Lumetri effects on the clip, one useless and the other one working). 

[christopherm13668766]

Ok, I may actually be an idiot- it looks like it makes a 'brightness & contrast' effect on top of the Lumetri effect (which is neutral unless modified) so of course copying that would have no effect. I think that was it. will update if I'm wrong

[christopherm13668766]

Ok, turns out I'm not an idiot. I've confirmed that it really IS dragging in an empty Lumetri effect, aka no settings altered via the preset. This is happening on all presets/LUTs. And moving the sliders is doing nothing. I'm using 24fps 10bit 4k file at 75% / 1/4 resolution but I'm fairly certain this is happening on 1080p files as well.

[R Neil Haugen]

There's an effect showing in the ECP?

There's also the autodetect log in Project settings, plus auto-tonemap in sequence settings. Those can change the appearance of log and/or HDR clips on SDR sequences.

Past that, screen grabs would be useful.