[CentOS] CentOS 7.6 kickstart error

I am testing a CentOS 7.6 kickstart installation. After kickstart was initiated,
the installation stops at some point where a sort of table is printed under
"Installation", and the item that fails is 4 - Software selection, Error
checking software selection.

I have checked /tmp/packaging.log and /tmp/anaconda.log, but cannot find any
errors here that would prevent installation.

Poor error messages, no usable lead for debug.