That was the one.

But droplets are essential to a proper wet look, and if they are running the wrong way that's too bad. With a lot of work one could rework the pattern so that the drops are running the way you want, otherwise your choices are, either (a) keep your character upright, or (b) hope that no-one will notice (which is quite possible, depending on the degree of closeup).

Some amount of non-realism in Poser is acceptable, in my view. Worse things happen with joints and hair before we start worrying about direction of water flow.