Hang adding drawing views

[crueby1]

I have a design that I am creating drawings from, and keep running into hangs. In the drawing, if I try and add a the surrounding views by doing 'projected view', selecting the base view, and placing it to the right/left/etc, all is well so far. When I hit enter to finish, it just hangs forever, or it crashes the ACCore task and the drawing disappears. It is different each time, sometimes it will work, then crash on a later operation, I cannot come up with a consistant scenario. This is not that complex a set of parts, the only unusual thing in it is that there are a couple of very long worm gears in the model - is that maybe what is messing up the drawing engine?

Model design shared here:   http://a360.co/2AQLQwb

The drawing shared here:  http://a360.co/2j9kx5O

[crueby1]

Additional info: I went back on a copy of the model and changed the thread operations by unchecking the option to model the threads. After that, the problem is gone. So, there is a workaround, but I would prefer to have the threads modelled. The main threaded bar is 2-1/4" diameter and 9' long, so that is a LOT of modelled thread, but seems like it should be able to handle it better than just hanging and/or crashing. The memory usage is less than a third of the available memory when this happens, and the ACCore task maxes out several of the cpus, and either stays there forever or crashes in less than a minute.

[crueby1]

spoke too soon - just added one more view, the ACCore task is at 100% on all 8 cpus, app is hung...