Revit integration does not support the reference version locking feature of ProjectWise. This is a Revit issue, related to the way Revit handles links. If you have a link which has multiple versions, you must use Revit’s Manage Links dialog if you want to change the version of the link being used.

Also, your administrator may have turned on a datasource setting that prompts you, before the master document opens, to update the versions of primary reference documents attached to the master document, if newer versions exist. Because Revit does not allow links to be changed in this way, if this datasource setting is on and you try to open a Revit file that has links that have newer versions, you will receive a message that you must use Revit’s Manage Links dialog to update the version of the link being used.