your test crashes as well:
-_Properties _Object _Match
To be precise, I used the following command:
'-_MatchProperties _Pause _Pause _Enter
It does not happen with all files. I attached two tests. The file MatchProperties OK.3dm is working fine, despite a greater number of curve objects. The file MatchProperties Crash.3dm crashes. In both files I am matching the objects on the default layer to the colored square curve object.
Hi Sivano - so far this works cleanly and instantly here on both sets of curves. The relevant difference between the two files may be that the one that crashes for you has many many plug-in materials, assigned to the curves. Looks like VRay, is that right?