Hi David,
Thanks for raising the concern.
Although, we could not get the issue replicated with latest Admin API version 8.22. It may be due to a problem in any older API interface being used and might have fixed later in API releases.
Could you please test with the updated the API on your side ? To get the newer APIs, please run "master key reintroduction" on your Sentinel LDK setup.
If this still doesn't help then please be suggested to reach us by reporting an incident using Thales Customer Portal .
Thanks & regards,
Parth