Yup, most contemporary source ports make objerror non-fatal.
Not sure why this wasn't caught earlier, I thought these were fatal in QS as well. Maybe that got back-ported from something later.
copper/subs.qc at master · itslunaranyo/copper
a single-player refinement mod for id software's quake - itslunaranyo/copper
github.com
Not sure why this wasn't caught earlier, I thought these were fatal in QS as well. Maybe that got back-ported from something later.