Ahh that may be it. Their iOS app is pretty bad. I've only had them for a month and I just didn't have time to experiment. I just wanted them to work.
I've actually had a lot of problems connecting them to WiFi, since before the firmware update they don't allow most special characters, and for some reason they can't hit my router due to range. I had to actually get a WiFi repeater to get everything up and running. Hmm it could have been the amount of UPnP traffic as well. I got about four switches, four plugs, and four motion sensors. Even when I didn't poll them with the iOS app, they would just randomly fail to follow their rules or maybe the motion sensors would fail to send messages.
Yeah I'm not keen on spending money for a hub with different radios but I literally just finished packing up all my WeMos today for a return. Too bad. I got them at a pretty decent discount too. I guess I'm willing to pay a little more for something that just works. I probably should have just kept them and got a Smartthings hub.