This isn't an urgent question desperately needing answered.
Just curious if this is happening else where or why the error only occurs with Parasolids from Mastercam X8.
what version of SW are you running?
if MasterCam's parasolid export is newer than the one in SW it may fail.
in SW open a file and save as x_t, then click the options box and then you'll see the output version number, SW 2014 is at 24.0
then open MasterCam and see what it saves out.
don't know if master can save out lower versions
Retrieving data ...