Unknown result PGd/pgs. Defrost refreeze and retest

I had 2 embryos make it to blast. Both were biopsy and sent for testing (pgd for cystic fibrosis) and pgs. Received the result that one was affected with CF and the other embryo yielded an unknown result. Ie) something happened with the testing.

So... the frozen embryo now needs to be thawed, re Biopsed and tested again. Frozen again and if ok thawed again for implantation. Either way it’s more handeling and not ideal as the embryo may be compromised. Has anyone had a similar experience ???