Package: kbackup Version: 18.12.1-1 Version: 19.04.3-1 kbackup build gzips the produced .docbook files, meaning khelpcentre cannot read them and reports the docs as missing.
Reproduce with 'Help > Help Centre Handbook' or by pressing F1 in kbackup In debian/rules the package is built with simple dh $@ Additionally passing '--with kf5' to dh should ensure the .docbooks are not compressed, so can be found and read by khelpcentre