Is there a limitation on number of files you can add to a review

We're using Collab 11.0 with RTC 6.0.2 integration.  

One user has a large changeset (@ 200 files) in his RTC work item and when he tries to create a review (using a work item state transition (eg. in progress to in review) the Collab review item gets created and linked but no files are attached to the review.

We've been using the integration for quite some time without encountering this issue. 

Is there a limitation on the number of files that can be attached?  Also in this changeset the user has a .classpath file. As no files are attached to the review (perhaps due to the number of files) should this file get attached automatically? There are no collab exclusion rules for this extension.

Norm