Some initial things to try: Do the "tried and true" reboot of your computer. Then retry to see if the data appears. This will help resolve whether it is a memory leak. If you have access to another computer with GIS software, open your data and see if you get the same issue. This will help determine if it is a user/profile or computer-specific issue. If the data is in geodatabase, run the Compact (Data Management) tool. This will clear any locks and generally clear up the geodatabase. ArcGIS Help (10.2, 10.2.1, and 10.2.2) Also, some questions to help provide background information for use in troubleshooting the issue: Which software are you using and what license level is it? In what format is the spatial data stored? Shapefiles? Feature Classes in an Enterprise Geodatabase? Feature classes in a Geodatabase (File or Personal)? Is the Join still active or did you save off the data into a permanent form? Any chance the Data Frames' Coordinate System got changed? Chris Donohue, GISP
... View more
