Home Speaker 500 - Alexa broken: Commands only working for first song played
I have a Home Speaker 500 and use it with Alexa & Spotify. Whenever I start ("Alexa, play spotify"), I can use commands such as ("Alexa, next song"). But once I have played more than one full song from beginning to end, Alexa does not accept my commands anymore ("Alexa, next stong" - Alexa responds: "I can't skip to the next song". Same with previous song / replay song etc.). The only fix which gets the commands to work again is restarting the home speaker. But then again, commands only work until one full song is played. (The only Alexa voice commands that continue to work throughout are the volume controls and turning on / off.)
My speakers are properly linked with Alexa and Spotify. I am based in Germany and use Alexa in English. I run the latest firmware.
Is this a known issue? Are there other people who have encountered this? Please help me resolve this, because this is not a smart speaker right now. I could live with this if there were at least next song / previous song buttons on the device but when I am required to use voice commands they do need to work.
Many thanks in advance!