I've been using S3D for quite a while now, with excellent results. However, today I tried to set up a dual-extruder print with support and ooze shield, and S3D crashed every time when I clicked on 'Prepare to Print'. After reading through the support posts, it is apparent others are having similar problems. In my case, the crash seems to be triggered by the default 'All Extruders' option for the Ooze shield. I can select 'Right Extruder' or 'Left Extruder' and I don't get any crashes. However, if I select 'All Extruders' (the default option), it crashes every time.
S3D V3.1.0, Win7/64, Dell Precision M6700 laptop
Frank