Thank you, Greg, that works even better.

This error handling exposed an interesting issue with case-sensitivity for bookmarks. Specifically, I have two bookmarks I am trying to create (among many others):

OP_Safe_HIPAA_164_504e2iiI_DR
OP_Safe_HIPAA_164_504e2iii_DR

Every time I try to create these two separate bookmarks I end up with one. If I add the first followed by the second, it replaces the first with the second. If I add the second followed by the first, it replaces the second with the first. Either way it does not recognize these as two separate bookmarks even though case is different.

Any ideas? Does the same happen for others?