i dont think he is able to get the attached corridor surface built- it is crashing before he can get the first round done.
Some things that have helped me in similar situations:
SP1, SP2, HF2 first of all
🙂
things that make corridors hard to build/crashy:
1)Make sure you picked your FG as the profile. I have people constantly picking the EG which makes a heavy (and ridiculous) corridor
2)Make sure all logical names that are appropriate are mapped- like daylight surface and target alignments if applicable
3)If the alignmnet doubles back on itself or makes a loop, it sometimes does weird things when it runs into the other side of the alignment
4)make sure the subassembly parts are used properly- no doubles, detached or similar weirdness
5)make sure to pick a boundary
Can you post the drawing with as far as you got?