In SAS Enterprise Guide 8.1, the Folders pane might unexpectedly collapse.
Specifically, this problem can occur if you expand Server ► Folders and double-click a SAS data set (.sas7bdat file) to add it to the project.
If you double-click to open a SAS program (.sas file) from the Folders location, the parent folder collapses.

This problem does not occur in SAS Enterprise Guide 7.15 or earlier.

As a workaround, use File ► Open to open a .sas file into SAS Enterprise Guide, and open a SAS data set from its assigned library (Server ► Libraries).