This is more a suggestion than a bug.
When the Find Directories panel (with the directory tree) is displayed, there is a "Refresh Button" and a "Cancel" button. Clicking on the first "Refresh Button" brings up the Refresh Database panel with the directories to be refreshed. A second "Refresh Button" appears on this panel.
As a user, I find this confusing as I am clicking on the "Refresh Button" twice. Instead, I suggest renaming the first occurrance to something like "Select Dir".