[2021/09/16 22:10:57.946] ERROR: test_01_aws_region_key (test_encryption.TestCustomEndpoint)
 [2021/09/16 22:10:57.946] ----------------------------------------------------------------------
 [2021/09/16 22:10:57.946] Traceback (most recent call last):
 [2021/09/16 22:10:57.946]   File "/data/mci/050e205f3a65ef0cc94bae9472651ab3/src/pymongo/encryption.py", line 73, in _wrap_encryption_errors
 [2021/09/16 22:10:57.946]     yield
 [2021/09/16 22:10:57.946]   File "/data/mci/050e205f3a65ef0cc94bae9472651ab3/src/pymongo/encryption.py", line 498, in create_data_key
 [2021/09/16 22:10:57.946]     return self._encryption.create_data_key(
 [2021/09/16 22:10:57.946]   File "/data/mci/050e205f3a65ef0cc94bae9472651ab3/src/venv-encryption/lib/python3.9/site-packages/pymongocrypt/explicit_encrypter.py", line 136, in create_data_key
 [2021/09/16 22:10:57.946]     return self.callback.insert_data_key(key)
 [2021/09/16 22:10:57.946]   File "/data/mci/050e205f3a65ef0cc94bae9472651ab3/src/pymongo/encryption.py", line 214, in insert_data_key
 [2021/09/16 22:10:57.946]     raise TypeError('data_key _id must be a UUID')
 [2021/09/16 22:10:57.946] TypeError: data_key _id must be a UUID
 [2021/09/16 22:10:57.946] During handling of the above exception, another exception occurred:
 [2021/09/16 22:10:57.946] Traceback (most recent call last):
 [2021/09/16 22:10:57.946]   File "/data/mci/050e205f3a65ef0cc94bae9472651ab3/src/test/test_encryption.py", line 1135, in test_01_aws_region_key
 [2021/09/16 22:10:57.946]     self.run_test_expected_success(
 [2021/09/16 22:10:57.946]   File "/data/mci/050e205f3a65ef0cc94bae9472651ab3/src/test/test_encryption.py", line 1125, in run_test_expected_success
 [2021/09/16 22:10:57.946]     data_key_id = self.client_encryption.create_data_key(
 [2021/09/16 22:10:57.946]   File "/data/mci/050e205f3a65ef0cc94bae9472651ab3/src/pymongo/encryption.py", line 498, in create_data_key
 [2021/09/16 22:10:57.946]     return self._encryption.create_data_key(
 [2021/09/16 22:10:57.946]   File "/opt/python/3.9/lib/python3.9/contextlib.py", line 137, in __exit__
 [2021/09/16 22:10:57.946]     self.gen.throw(typ, value, traceback)
 [2021/09/16 22:10:57.946]   File "/data/mci/050e205f3a65ef0cc94bae9472651ab3/src/pymongo/encryption.py", line 79, in _wrap_encryption_errors
 [2021/09/16 22:10:57.946]     raise EncryptionError(exc)
 [2021/09/16 22:10:57.946] pymongo.errors.EncryptionError: data_key _id must be a UUID