{{Quickfixn}} Incorrect NumInGroup Count for Repeating Group - Tag 268, 269

[saf at post.com]

In order to unsubscribe the client from a Market Data stream, my broker sends the following FIX tags in a messageType "W":
268=0,269=J
QuickFIX replies: "Incorrect NumInGroup Count for Repeating Group"
 
QuickFIX seems to consider the number of groups (MDEntryType) to be 1 which doesn't match the 0 value of tag 268 (NoMDEntries).
Is there any way to stop this from getting rejected, or to capture the rejected message? (Using FIX 4.4)
 
Thanks very much for your help.
Alex