When selecting inverted "natural" touchpad scrolling (drag up to scroll down), Dashboard only works in "standard" scrolling mode (drag down to scroll down). KDE Plasma Version: 5.12.1 KDE Frameworks Version: 5.43.0 Qt Version: 5.9.3 Kernel Version 4.13.0-32-generic OS Type: 64-bit
Confirmed on neon dev unstable, under X11 + libinput. No problem under Wayland.
Marking as duplicate, as it seems to be the same root cause and affecting all Plasma ScrollViews. *** This bug has been marked as a duplicate of bug 389972 ***