"Alexa, I'm leaving" no longer works for me...

[marklyn59]

I used to say "Alexa, I'm leaving" and she'd turn guard on. Now she doesn't know what I mean and tries to look stuff up for me instead.  I am speaking very clearly and I've now tried it on all of my devices, and she doesn't understand anymore. However, when I tell her to turn Guard on, she does that and she always understands me when I come home and say "Alexa, I'm home", so she turns Guard off that way.
Anyone have any ideas on what I can check? I've made absolutely no changes since this issues started up a couple weeks ago, so don't know why this is a problem.  Can someone remind me of the steps to set this up again to work?

[renegade600]

did you check history to see what alexa is hearing?  Is this a routine you created?  If so, delete it then recreate it.