Unresolved packages and missing model in RMM

With the same user logged in (that can't see the files in the explorer), can you check if that user can see the files in SCM (i.e. the specific file that contains the model elements). Ex: Open the stream (the same stream that is selected as the configuration context at the top right part of the RMM explorer page), then navigate to the component that contains the files, then navigate to the Repository Files, and expand the folders till you get to the files. One assumption is perhaps those files had their permissions changed such that the logged in user can no longer see them.