When the storage quota attributes ProhibtSendQuota, ProhibitSendReceive or IssueWarningQuota are set for a target user's mailbox with a value in the acceptable range the UpdateMailbox process will enter a frozen state with the following error:
(Message:Cannot bind parameter 'ProhibitSendQuota' to the target. Exception setting "ProhibitSendQuota": "The property, (5 TB (5,497,558,138,880 bytes)), is out of range. The valid range is from 0 B (0 bytes) to 2 TB (2,199,023,254,528 bytes)." ))
The error above will include the storage quota attribute exhibiting the issue.
Development has acknowledged the given behavior as product defect 26761. Please contact support to inquire about a hotfix