Cannot configure outbound policy for weighted balance

I have a peplink 310, firmware 5.4.9, with 3 active wan ports. About 4 weeks ago the peplink locked up and I could not get into the device. So I reset back to manufacture and reloaded firmware and a backup copy of the settings. Since then I have been trying to add an outbound policy for weighted balance across the 3/4 wan ports unfortunately I do not get a slide bar to adjust the setting all ports are set to 10. Not sure what or how to make this feature work again. Would be grateful if a solution could be found. regards Peter


Thank you for all of the information provided thus far. If you could open a support ticket we can certainly take a closer look.