Warp stabilizer Multicam and Master effect

In normal situation my system is analyzing lightning fast, faster than real time. If warp stabilizer is second in chain, ie I put lumetri and then warp on the same clip it works just as fine. The problem is only when something in nest has effect on it. So we can assume that it can be fast but something is off with nests

Several effects, Lumetri and WS (in that order) on one clip works just fine on my (old) system.

The only thing is WS random loses connection to the gpu (while it still stabilized)

Warp stabilizer is the heaviest resource demands hog for any effect, even more so than Neat video noise remover. I don't even recommend applying that and leaving it 'on' a clip in a sequence if you're not applying other effects.

I always Warp, get a 'clean' usable clip from the analysis, then do a ful Render & Replace operation typically to ProRes422 to get a full replacement clip.

THEN I do any other work on that new clip.

You're mushing together Warp, Multicam, and Lumetri ... no, I would never expect that to work properly on any hardware.