Update: I used vanilla RWG + Compopack 47 and this map does not show the same artifacts as the Nitrogen world, when played from a dedicated server (both maps worked fine in single-player mode). So I think the aging Nitrogen RWG engine might be the cause of my issues.
Original comment:
I'm having the same issue on an 8K Nitrogen map using Compopack 47 on a dedicated server. I'm still doing some tests to narrow down the issue, but my experience so far is:
1) The 'pois' command is not accepted by the console; something like "distant pois are not enabled" - maybe it's a ded server thing I dunno
2) The Recalc Stability option had no effect
3) Quitting and restarting 7D2D had very little effect. The initial chunks around me looked okay upon reentering, but as soon as I started traveling around, phantom blocks would start popping up.
4) RAM usage is at 70% with both ded server and client running on same (32GB) machine. Ded server is using 900M (! - this seems like a huge improvement) and client is using 15GB (! - this seems higher than I remember from 19.2 and before, but I could be misremembering)
Edit to add: this same map does not exhibit the problems in single-player mode. Only when run through the dedicated server. So I'm going to go poke around my serverconfig and logs.
Things I see:
Trash piles with blocks in them:
View attachment 18849
Underwater plants with 'faces' on their blocks when viewed from the surface, but not visible when actually underwater:
View attachment 18850View attachment 18851
Whole areas of POIs stuffed full of ghost marble blocks:
View attachment 18852
Since Nitro + Compopack is involved, this probably really isn't a general support issue, but I thought I'd share in this thread since it has some recent activity.