Hi,
The numerous improvements for processing extremely large and complex build files and shortened times for exporting toolpaths in Version 4.1 are really great! So much time is saved.
Simplify3D is light years ahead of anything else out there!
There is an issue with the manual placement of supports on interior walls of objects in Version 4.1. The pillar disappears from the cursor and supports can't be placed. The workaround is to place the supports in V4.01 and then import them into V4.1. The example I have posted is a simple sphere with a 3mm wall thickness.