I have run into a situation (multiple issues actually) in creating some objects. Using from cross-section lines and sweeping out a shape using rails, then using the offset-shell command I get some distortions and inaccurate surface shapes. Here is a quick video showing the issue:

https://youtu.be/eOF6zyUzLF8

Another issue is the "network" function does not always follow the outline of the frame precisely.

https://youtu.be/aQobMOX4Qx8

Another weird thing, if I create a revolved shape and rotate it, Moi suddenly alters the radius slightly just by rotating it. I noticed this when I created a revolved shape of precisely 14.375 cm in radius (28.75 cm overall) and rotate it 11.25º it suddenly says it is 28.747431 cm x 28.747431 cm.