hs210 3 way switch in 4 way circuit
so i installed a hs210 in a 4 way circuit (1 light controlled by 3 switches). i replaced the first 3-way switch in the circuit. the hs210 works fine, however it doesn't detect on the app when the light is turned on/off with the 4 way switch or the other 3 way switch. for example, if the app shows that the light is off, i turned on the light with either non smart switch, the app doesn't know that the light is on. would installing the 2nd hs210 fix this or?