Stuck with an simple automation rule

[pnbruckner (Phil)]

@AdmiralRaccoon

Is there a simple, short explantion for what the “-” (minus, hyphen) stands for? In some
examples they are there, in some they aren´t.

It just so happens I provided an explanation just the other day :

When to use '-' in yaml files?

Can someone please point me to a good tutorial on HA’s use of yaml and the ‘-’ dash usage. I can’t seem to figure out when one is needed or not thanks.

Maybe you will find this useful as well. FWIW, I don’t think this is your problem.

@Jer78

Also if that doesn’t work, the other thing you’ll have to look for is if your media_player state is “on” or if it should be “playing” instead.

I agree with @Jer78, I think this may be your problem. I’m pretty sure most media_players’ states are typically ‘playing’ when they’re “on”, although I believe some might actually set their state to ‘on’.