the newest versions of RH automatically perform netfab repairs to every model loaded and trys to repair with default auto fix settings. (one thing I dont like and why I wont install them). maybe those models have more errors than auto fix can repair.
another thing with the newest versions (I also hate) is you must remove and delete all files and registry of any previous versions b4 installing the newest versions above 1.0 or 95f
in lamens terms its for SD Press users hehe. I dont use anything made for dumbing down functions for non computer capable consumers like the newest windows OS, AOL, 1 button electronics, cars with engine light instead of real instrument gauges...
ever use MS Word and have to deal with 'Clippy'? lol google "kill clippy"
Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs