But still don't know why this caused the misbehaving.
From one day to the other spots are not shown anymore in DX Spots Window. Also this window does not open anymore after restarting RumLogNG. No changes within the settings were made. Cluster is active in the Terminal window. I've removed the de.dl2rum.RUMLOGNG.plist file and restarted but have the same behavior with a new setting.
>>> I just noticed, that the band map also shows no spots.
What could be the cause of this?
Thanks for any info, Gerald - HB9CEY