The work around is to have less than 200 clones per host. If you feel like the second disk counts as a single linked clone then try to keep less than 100 clones per host and see if you still have the problem. If you do still have the problem than maybe it's not the number of linked clones per host causing the issue. In that case you may need to open a support ticket to see if there are any internal KB articles assigned to that error.
Another option is to disable the SE Sparse.