Spacebar event doesn't fire while running in S+A

It seems to be an issue everyone should notice, but I haven’t found any thread about it, maybe I just don’t know how to search, but:

When I move my character (with S+A or with S+D) and press spacebar for jump event, nothing happens, it doesn’t fire the node, even though while running in other directions it all works fine. It’s not a code mistake as it’s happening in the basic tempas as well.
Wonder if there’s any way to set my inputs for doing spacebar event with backwards running.

I really feel like this topic was made before, as it seems to be a noticable problem if I found that, but still maybe it wasn’t somehow, so I’m posting it.