this is the monitor window, it looks like a buffer problem to me :

same here, print keeps hanging all the time when printing via usb (didn't try SD card printing yet).
It is very annoying and is burning the print while hanging up.

hello, I'm just starting to use S3D and unless mistaken didn't see a way to choose the internal support shape. My idea is to use this feature to strengthen hollow parts by adding honeycomb support by example and thus being able to choose support type and support thickness. That would be a great feat...

+1 for water soluble support
+1 for ultrasonic