and also the Sebson IR_ES_C isn't working.
Which one will work with the dimmer2?
I have a Sebson IR_ES_A which works to activate but not deactivate the Shelly, therefore I am using the following workaround...
Set the Shelly Dimmer 2 Button Type to 'Activation Switch' and enable the 'Auto Off' feature.
I have also heard that EBDSPIR-VFC from CP Electronics works with the Shelly 1 (and maybe others?) but I have not yet tested it myself.