@Baptiste-Patry said in Problem "Please unlock your device" on Alexa...:

Please unlock your device

I did some googling and it seems you might have a pin enabled on your Alexa? Or you have children's accounts with access to your Alexa?
https://www.reddit.com/r/alexa/comments/9mp5gg/show_mode_makes_me_unlock_device/

It doesn't seem to have anything specifically to do with TRIGGERcmd - I think you'd have this problem working with any smart home devices via Alexa.