Hi, 

Last night I lost half the speakers in my home Sonos system.

What I have:

Era 300

2 - Roams

Move

Beam

2 - Sonos One 

1 - Sonos SL

SYMFONISK - Picture Frame

Subwoofer

Boost

What I lost:

2 - Sonos One 

1 - Sonos SL

SYMFONISK - Picture Frame

1 - Roam

Boost

I did the factory reset to re add the speakers and it worked for a second and then disappeared. For some strange reason, they started to play music not from my list when I manually hit the play button on the speakers. This exact same thing happened at my girlfriend business sSnos system about a month ago. Eventually it fixed itself after a frustrating 2 weeks. 

My question is will my system fix itself as well? I already spent 2 hours this morning trying to troubleshoot with all the tips on the website and tips I found on Reddit with no avail. 

All these issues started happening after the launch of the revamped app. We had no issues for over 5 years until the app was updated. 

Please help!!

Much appreciated.