I just installed hs210 (just one unit) and noticed a few things. The switch seems to work with other switch properly in terms of on/off functionality working as expecred, but:

1. When lights should be off, the LED lights seem to still be on but in a very low power mode (almost like on a dimmer set to low)

2. When I turn the lights on using kasa app, it works and the app shows the light is on, but then in a few seconds it switches back to saying the light is off (even though the light remains on). If I hit the button again, it turns the light off (and the status indicator says the light is turned on , but then switches to off again after a few seconds). It's almost like telling the app is just saying to toggle the light, and it always wants to be in the off state and I tell the app to turn the light on in order to toggle)

Any ideas why this is happening?? The only wiring mistake i can think of is switching the load line with a traveler, but then I think the switching wouldnt work properly which is not the case here. 

Thanks!