Strange thing happened with my custom scan this morning. After selecting custom scan from the scan type selection page, the configure scan button appeared as it should. However, when I clicked the configure button it went directly to scan giving me no opportunity to select folders etc. This initial scan did not include a file system scan. When the scan was completed the finish button appeared. When clicked, the program went into a scan which did include a file system scan but again without any opportunity to select folders. When this scan completed, the finish button appeared. When clicked, the program again started scan like the one it just finished.
To summarize there appears to be two problems. First, the program is not presenting an opportunity to configure a custom scan. Second, the program ends up in an endless loop of scanning, presenting finish button, scanning, presenting finish button .... and never properly finishing the exercise.