Hey Alexey,
I've been having some issues with custom dense point clouds. I can now reproduce it consistently:
I've illustrated some examples:
1. Imported point cloud does not move with rest of the chunk:
https://www.dropbox.com/s/76bkoagxsxa0so8/moving%20point%20clouds.mp4?dl=02. Meshing a custom cloud imported to a chunk with Transform results in a much lower polygon count than the estimate ( I assume it has something to do with issue nr1, see image )
(see attached image)
I am importing .PLY point clouds.
Hope this helps
edit: Sorry, this was supposed to go to Bug Reports forum.