iwoodcutter

I am printing a simple bushing. I need to print 260 of them. I can slice one. If I multiply the part (max I can fit is 200) it freezes at 25%. I can't even print 50 at a time. Slice function freezes. Task Manager shows program is not taking any CPU so not a time thing to let it run. Is there a max constraint? Screen Mount Bushing 4.76mm.stl