I'm having problems with casting spotify to both my chromecasts. I own a chromcast first generation and a chromecast audio. The spotify app (on ios iphone and ipad) does see both devices. When I try to cast to either Chromecast it tries to connect bu- t then crashes.

ios and sporify app are both the latest version. Contacted google and both chromecast have the latest firmware. Google support told me it was a spotify app problem. 

I'm very dissapointed that sporify won't connect to the devices. 

Questions are:

Is this a know problem?

if so, when is Spotify planning to resolve the problem

if not, what do spotify recommend me to do