Another oddity - track is desyncing while in playback

Hi, I have 5 tracks with fx and dialog I'm cleaning with x-noise on each track, and whats odd is that one or two of the tracks desync as they progress. In other words, when I hit the play button everything is fine but after couple of minutes you can clearly hear that tracks are desyncing. Without x-noise they are fine. Please help.

Do you have xnoise on all Tracks?

You have to delay the non xnoise tracks by a certain amount of samples. It is in the manual.😁

It's on all fx tracks and voiceover. And I can't delay it because it starts all fine, but then with time it is becoming desynced. I guess, now thinking about it, maybe freezing will fix that.

just to check, VST3 version is being used here? Seems that the PDC is not reported correctly to reaper, or is variable somehow. Should report the bug to Waves