Symptoms
Assume that you run hundreds of Transaction Integrator (TI) applications in Microsoft Host Integration Server 2013. Randomly, one or two of the applications may throw the following exception one time per week:
System.NullReferenceException, Object reference not set to an instance of an object.
Cause
This issue occurs because of a timing window issue in the Transaction Integrator code.
Resolution
The fix that resolves this problem is included in Cumulative Update 4 for Host Integration Server 2013.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology Microsoft uses to describe software updates.
