This may not be the correct space to post this issue, but I'm not sure where else to ask it.

My company has both Solidworks (2009, 2010, 2011) and Pro/Engineer (Wildfire 2, 3, & 4) . We use Windchill as our PDM system for Pro/E, and have recently started using the Solidworks Workgroup Manager for Windchill to manage our Solidworks databases.  Previously, there was no PDM system in place for managing our Solidworks projects. 

Recently, I've been noticing an error that has me quite confused.  It seems there are a couple of instances where newer content has been overwriten with older content.  I've only encountered this once before, and determined that the cause was a configuration setting that was improperly set when we migrated from Windchill 9.0 to Windchill 9.1.  Apparently the default state of a setting under "Create & Edit" ("Allow checkout of non-latest iterations") was toggled from no to yes.  This eliminated the issue for our Pro/E databases.  However, we're now seeing the issue with our Solidworks databases even though the setting has not changed.  It's a bit alarming.  I've made sure my fellow coworkers are synchronizing their cache and updating out of date components, but the problem persists. 

Is anyone else using Windchill as their PDm system for Solidworks data, and if so, do you have any insight as to what the potential cause could be?