The issue wouldn't be Poser but the batch command that creates the files that are read by the CR2 that create the morph channels. That is, DzCreateExPFiles-v4.bat in RuntimeLibraries!DAZ. However, it's unlikely that would cause a problem out of the blue as it doesn't get run normally, only when the user needs to update the list of installed morphs, and we aren't certain that the user has the files in the application folder - the main Runtime of Poser 10 may mean the one that defaults to the Public Documents folder. One thing to check is that there is only one RuntimeLibraries!DAZVictoria 4 folder on the system - multiple folders can lead to Poser getting a mixture of files, which can result in odd partial failures.