My Spotify app keeps randomly disappearing from my watch.

This has happened to me twice in 2 days....it's starting to get on my nerves...

In fact, it actually replaced Spotify with Deezer this time!!!!!!!!!!!!!1

Yes, it did that to me too! 

I have updated Spotify on my Forerunner 245M last week. After that my music on Spotify have been removed.

I thought it was a bit rough for an update but as develop do what they want, I put all in order, downloading all the playlist...

But, this morning, after a synchronization with Garmin Express (no app update only a sync in order to update schedule) all the music has disappeared. Ahr!!

Don't know what happen but seems related to the new version of Spotify as my wife with the same watch and no Spotify update hasn't got any problem.

(Using Forerunner 245M with version 4.40)

Yes, since installing the 4.40 update it has happened.

I only bought the watch last week...and updated up 4.40 almost immediately...! How frustrating, hopefully there is a hotfix.

They have a beta 4.41 version of the software, but installing at one own risk...so maybe I'll just use my phone and spibelt for music for the time being....

This happened to me yesterday, went out for a run, fired up spotify and it told me I needed to be connected to Garmin Connect, went back home, got my phone out, hooked it up, spotify opened but I had to sign back in again and all my music was gone. Pretty annoying as it takes forever to sync a playlist.

Just got my watch three days ago and am now on my third install of the Spotify app...

I gave up, using my phone in my spibelt now...

I'm assuming music on the 245 works the same as my 945.  When you say the Spotify app is no longer on the watch, are you referring to the widget?  I use Spotify but I've never used the app.  I just downloaded my Playlist, I long press the bottom left button to access my music library and my Spotify playist is there. I also go there to update or edit.  Is this different from what you have going on, or does Spotify disappear from there also? 

Spotify completely removes itself from the device, and it is no longer selectable as a music source on the watch. 

It sometimes replaces itself with Deezer...which I never agreed to install on the app! 

That's very odd it keeps removing itself and more so that Deezer appears.  Spotify has been working for me for over a year now. Sorry, but I'm going to be no help to you.