Cannot select blocked entities when editing a project

This section provides information on a validation error.

Workflow Table	Type	Level	Description	Workflow Conditions
Project	Change	Project	Blocked Entities cannot be selected (Change)

Action	Level	Column (Field) Change Properties	Description	Action Conditions
Column (Field) Change	Project	Column: Workflow Blocked Entity  New Value SQL Expression: If this is True: (select custBlocked from UDIC_Entity where UDIC_UID='[:ProjectCustomTabFields.custEntity]')='[BLOCKED]' Use this Calculation: 'Y' Otherwise, Use This Calculation: 'N'	Test if blocked Entity was selected	Entity Dimension not empty AND Entity Dimension has changed
Validate Error			You've chosen a blocked Entity. Please select a different Entity.	Workflow Blocked Entity equals Yes