Can Shelly's work with 2 way switches?

Hello - last year I installed some Shelly switches when renovating our house (and got some help here for my simple 1 way switches - which all work fine). However I have never got the 2 way switches to work correctly - and as my new year resolution I'm hoping to get them working properly

Can anyone tell me what is wrong with my wiring for 2-way switch and Shelly Dimmer 2? : r/homeassistant

SOLVED] Shelly1 wiring with 2-way switching (hotel switch) - shelly1 - openHAB Community

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Have this 3 way setup, I want to replace one switch with the shelly dimmer 2… : r/shellycloud

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Shelly support group (English Version), Hey, group! I've recently mounted a Shelly 1L on a two-way switch setup using the official scheme in the picture