Max, Nathanael, could you confirm that you're too using Neo2, or similarly "exotic" layouts? Otherwise we're probably looking at different issues.
Indeed, I use Neo2.
This can be traced down to the keyboard configuration of konsole. When going to: Edit Current Profile... -> Keyboard -> Default (XFree 4) -> Edit... and then using the "input" field for testing, it can be observed that for the arrow up key, different rules trigger depending on the keyboard layout: Layout Rule Escape Sequence de neo Up-Shift+Ansi+AnyModifier \E[1;1A us Up-Shift+Ansi-AppCursorKeys-AnyModifier \E[A
This workaround worked for me. I used some "normal" German variant, though. Best regards Max Görner
