"There are two actions (Find in Files..., Normal Fraction - \frac{}{}) that want to use the same shortcut (Alt+Shift+F). This is most probably a bug. Please report it in bugs.kde.org" May be an issue with openSUSE Leap 42.3 default shortcuts. It's easy enough to remedy through the settings but I figured I'd post it here in case Kile is doubling up on shortcuts.
*** This bug has been marked as a duplicate of bug 381291 ***