- Enable one Separate Tree (Ctrl+Shift+F8, repeat if necessary)
- Show the same folder in left and right panel (cm_MatchSrc)
- Enable Synchronized folder changing (cm_SyncChangeDir)
If you go up a folder by double-clicking or pressing Enter on the ".." entry in the file panel, the Separate Tree display is correct.
If you go up a folder by pressing Ctrl+PgUp, the Separate Tree display is not correct. The wrong folder is marked/highlighted.
Similarly, if you press the \ or .. button above the file panel, the Separate Tree display is not correct.