I'm having the same problem as others. The rules I've made don't work. I just installed the switch today. It works fine via the app and Alexa, but the rule as will not work. I've tried deleting them and recreating them with no luck. I'm kind ready to give up and return the switch.
I have a WeMo mini device, and it works well except for one. Serious problem.
When I first got the WeMo Mini, I programmed some test timers to see how it would interact and demonstrate to the family so easy to set up was. I then had the application delete all the timers and set up our to long-term timers for the living room.
The two timers that are visible work perfectly, unfortunately the test and then all timers are not visible but are still actively turning the light off and on at the original times. I have tried every variation from device reset followed by factory reset and factory reset follow my device reset and boar that I can come up with and have been unable to get the original hidden rules to disappear. They are not visible in the app even if I configure the device with a new name or count it still remembers the original hidden timers. I like the WeMo mini very much and be visible timer works perfectly with sunrise for my location, but the hidden rules that cannot be deleted, and 2 rounds of technical support chat rooms have gotten me nowhere. I currently have no choice but to return the device and get a new one then simply program one time the timers I want to use to make this helpful and not feel like our light in the living room is haunted.