I am using "natural scrolling", i.e. I used the following command to configure my trackpad: synclient VertScrollDelta=-29 HorizScrollDelta=-29 This seems to work as expected everywhere but in Kickoff. There, the scroll direction still seems to be in the "traditional way". This is what I already tried: * revert VertScrollDelta to positive values - this showed no effect in Kickoff * in addition, I tried to change the scroll direction for Mouse input - also no effect on Kickoff I am using plasmashell 5.0.1 on Fedora 20 installed from Copr (https://copr.fedoraproject.org/coprs/dvratil/plasma-5/).
I just had a play, it seems all Qt5 apps that were already open don't update. Can you confirm restarting plasmashell fixes it?
Restarting did not help (I tried everything including even restarting the complete system to ensure this behavior is "persistent" before filing the bug). Furthermore, I did not notice any other Qt5 app to behave similarly. However, there's good news: I updated to Frameworks 5.2.0 (from Fedora's Copr repositories) and apparently this fixed the issue. :) Natural scolling seems to work fine now, so I guess this one can be closed (unless somebody else sees the same issue still).
Thanks for reporting back.