When you use an MQSeries adapter in Microsoft BizTalk Server to receive messages from an MQSeries server, messages are received in BizTalk Server as expected. However, if you restart the corresponding BizTalk Server host instance, the messages reappear in the queue on the MQSeries server and may be picked up again.
This issue is a regression that occurs after you install update 2951982.
Cumulative update information
The fix that resolves this issue is included in the following cumulative update for BizTalk Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about service pack and cumulative update list for BizTalk Server.
Learn about BizTalk Server hotfixes and cumulative update support.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.