Probably has nothing to do with cogo points. There have been numerous posts about this issue and it seems there is something else wrong with the drawing, the drawing is just hanging after the cogo message is displayed but before the next operation is finished:
Yeah I had read that post. I have audited, recovered, and purged the drawing. I have also downloaded a purge add on that purges nested objects. Nothing is fixing this issue.
Once it opens I can save it, close it, and open it back up. Others can open it right away. I notice however that once the file sits for 5 or 6 minutes and you try to open it, that is when the issue occurs.