az feedback auto-generates most of the information requested below, as of CLI version 2.0.62

Describe the bug

In our live test pipeline, we are seeing failures with az servicebus namespace delete caused by resource not found during the delete long running operation. The resource does exist (otherwise an error will be returned by service directly, the polling of long running operation result will not happen) and is deleted after the operation.
Some failure examples in test_sb_network, test_sb_alias.

I cannot reproduce the issue easily by simply creating and then deleting a namespace. So it may only happen in some cases.

To Reproduce

azdev test test_sb_alias --live, the deletion of the primary namespace often succeeds while the deletion of the secondary namespace often fails.

Expected behavior

az servicebus namespace delete should delete the namespace with a 200 status code.

Environment summary

Additional context