Face detection/recognition options are not persistent, you need to adjust accuracy level and options like "Work on all cores" every time you launch it. Reproducible: Always
Git commit b0ae52e517a7ebba0eed39e2c052a08dc2f305e9 by Gilles Caulier. Committed on 15/09/2016 at 10:42. Pushed by cgilles into branch 'master'. When user press SCan button, call slotOk() to save current settings FIXED-IN: 5.2.0 M +1 -0 NEWS M +1 -1 utilities/facemanagement/facescandialog.cpp http://commits.kde.org/digikam/b0ae52e517a7ebba0eed39e2c052a08dc2f305e9