Hi Michael, is there a file size limit with .3dm ? I tried to stress test MoI here, copying the model 20 times. It gives a 2.39GB .3dm file, however when reloading the file I only have 5 copies ... and an half model.
(NTFS file system, so I don't thing it's an disk format limitation).

V4.0 Loading time was about 40sec ... Memory usage is bellow 18Gb (/64). Moi 3.0 just crash after a while.

It's a very dumb usage scenario ...