This is not a Slingshot bug, it's a problem of Granite PopOver which sometime fail to detect compositing. We'll probably remove the check (since we ship, like almost everyone else, a composited environment) and everything will look okay again.
This is not a Slingshot bug, it's a problem of Granite PopOver which sometime fail to detect compositing. We'll probably remove the check (since we ship, like almost everyone else, a composited environment) and everything will look okay again.