HSM water - audio alerts for Sonos speakers not working

[stephack]

I had an eerily similar issue with my water alerts with respect to setting bulb colors. I could set the color with any app, but with HSM it would generate errors and fail.
If I manually created a custom alert in HSM that used the same devices and actions, it worked fine.I'm part of the beta program so I know this will be fixed for me in the next f/w release.
This is the thread of my issue

HSM Alert not setting bulb color..log errors

@bravenel This might have been broken for a while but I only recently noticed (had a small leak). When a Water alert is triggered by HSM, my text and audio alerts are received but my lights do not change color and generate the following error. [Screenshot_20190728-174250_Chrome] I completed removed and readded HSM but the problem persists. Here's the relevant part of my HSM config. [Screenshot_20190728-174346_Chrome]

Something for you to try (since you have Sonos speakers) is to setup your SpeakTo action differently. If you are currently using "speech device", try using a "music device" instead...and vice versa if needed.

If that fails as well, try doing like I did and create a Custom Alert in HSM. Set it up exactly like you did in the Water alert and report back here.