When using a login database with a mobile implementation of ArcFM Viewer for ArcGIS Engine, the ArcFM Locator setting, "Show all tables," will instead show a list of select ArcFM system tables, similar to the following screenshot:
This issue is the result of a known bug, MM55744, that was introduced as a result of the fix for bug MM53728. This fix prevents multiple listings of the same table, in the case of multiple connections to the same geodatabase, as is common in Designer. However, this is unintentionally culling the tables in the geodatabase that are referenced by the separately-stored login database.
The fix for this issue is slated for inclusion in 10.2.1a SP2 and 10.2.1b SP1. As an immediate fix, the login database's stored displays can instead be replaced with MXDs. Using an MXD does not trigger this issue and allows all tables in the geodatabase to be listed. If desired, the MXD can be added as a launch parameter for the shortcut of ArcFM Viewer for ArcGIS Engine, as in the following screenshot: