Kontact (Akregator) problems

Have installed openSUSE a few days ago and I am now setting up Akregator to show me feeds from some sources.
I do get the feeds and I can reed them, but when I click on a different source, for example from openSUSE to Manjaro, the program sometimes crashes.

A second problem is that from the added (by me) sources I cannot read the subjects and the dates of the feeds. The lines are just empty. The KDE sources show all info about the feeds, but the new ones don’t.
First I thought the text could be written in white, but since half of the lines have a grey background, this can’t be true.

Anyone has the same problem or even better, a solution?