JobComposer demands for deleted preset

Problem/Question

When starting the JobComposer the error message appears

"ImagePreset "Preset name" not found"

This error message usually appears after an image preset selected in the preset dropdown menu (which is asked for in the error message) has been deleted.

Solution/Work-Around

Go to <ImagePreset> dropdown menu
Select an existing Image Preset from the list (e.g. -None-)
Restart the JobComposer