I noticed a further strange thing:
Under preferences I unchecked the "Auto-Populate Aircraft Data" feature, but kept the "download photo" feature aktive. After that, I manually changed the false entry of the SIA 9V-SKH A380 in the "NavData" Database. Then I have manually corrected the MyLog entry of the mentioned aircraft. Finally I removed the downloaded 9V-SKH pictures of the "stored" B744 AC from the photo directory.
And now it comes: Today, after tracking the 9V-SKH in flight, the MyLog entry was changed back to the false B744 data, while the NavData DB entry is still correct. Is it possible, that the "Photo download" feature is somehow messing with the MyLog entries?
Is this a known problem?
Let's see what happens if I don't delete the pictures of the earlier B744 9V-SKH.