The Nest Community is now Google Home & Nest!
We have moved to a new home. Please visit the Google Home & Nest Community to connect with other users, ask questions, and explore the new space.
Same issue.saying to Google Nest device "Hey Google, play spotify",
followed by "Hey Google, move this to [Chromecast Audio device]" to
bypass the issue, while waiting for a fix.Thanks @DeaneG for the
solution.