Object reference not set to an instance of an object

Hello,
We have purchased sql doc license, and have encountered "Object reference not set to an instance of an object" problem. Stack trace in the log:
[code]System.NullReferenceException: Object reference not set to an instance of an object.
at RedGate.SQLCompare.Engine.ExtendedPropertyValue.ToString()
at „.„.
We have purchased sql doc license, and have encountered "Object reference not set to an instance of an object" problem. Stack trace in the log:
[code]System.NullReferenceException: Object reference not set to an instance of an object.
at RedGate.SQLCompare.Engine.ExtendedPropertyValue.ToString()
at „.„.