Hello Casey, Our Production buckets are impacted due to this issue. We have downgraded Ceph version from 17.2.7 to 17.2.6 but still we are getting "bucket policy parsing" error while accessing the buckets. rgw_policy_reject_invalid_principals is not present in 17.2.6 as configurable parameter. Would appreciate response from your end. Nov 8 16:39:03 [1485064]: req 4696096351995892977 0.000000000s s3:get_obj Error reading IAM Policy: Terminate parsing due to Handler error. Nov 8 16:39:03 [1485064]: req 8949648957608194335 0.000000000s s3:get_obj Error reading IAM Policy: Terminate parsing due to Handler error. Nov 8 16:39:03 1485064]: req 3856551010860810445 0.003999948s s3:get_obj Error reading IAM Policy: Terminate parsing due to Handler error. Nov 8 16:39:03 [1485064]: req 18116384331500039920 0.000000000s s3:get_obj Error reading IAM Policy: Terminate parsing due to Handler error.