Hi! Our file won't save because it says there is an invalid cut path. It was totally fine and then we edited a corner of the design and now it gives that warning whenever we try to save. That corner of the design came up as an open line suddenly as well.
Any ideas? We've already tried smoothing, set it to delete overlapping segments, exploded and checked for extra lines, etc. Nothing works

Any advice would be greatly appreciated.
We have a DHC machine (old software) but it doesn't usually give us much trouble.
Thanks!