[AmazonEchoControl] v3.1 PlayListID can't be set -> exception in log

Hi,
I’ve installed 3.1 release today (before 3.0) (related bug was also given in 3.0)

First of all, if I try to sent PLAY to Player-Items, Alexa ask me what I would like top play. The if I say “my playlist XYZ” Alexa plays it and I can control (PLAY/PAUSE) via OpenHAB. Also I can send commands, like “weather” to start Item an Alexa speaks about Weather.
That means, connection in general works.

I’m trying to implement a rule, that reacts on one Item and then play specific PlayListID from Amazon Music.

But that is what I get in Log:

2021-06-28 15:23:35.136 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'AlexaSchlafzimmer_Musikanbieter' received command AMAZON_MUSIC

2021-06-28 15:23:35.144 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'AlexaSchlafzimmer_AmazonMusicPlaylistID' received command 6350db21-6841-4b80-8186-XXXXXXXXX 

2021-06-28 15:23:35.148 [INFO ] [penhab.event.ItemStatePredictedEvent] - Item 'AlexaSchlafzimmer_Musikanbieter' predicted to become AMAZON_MUSIC

2021-06-28 15:23:35.163 [INFO ] [penhab.event.ItemStatePredictedEvent] - Item 'AlexaSchlafzimmer_AmazonMusicPlaylistID' predicted to become 6350db21-6841-4b80-8186-XXXXXXXXX 

2021-06-28 15:23:35.171 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'AlexaSchlafzimmer_AmazonMusicPlaylistID' changed from  to 6350db21-6841-4b80-8186-XXXXXXXXX 

2021-06-28 15:23:36.160 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'AlexaSchlafzimmer_AmazonMusicPlaylistID' changed from 6350db21-6841-4b80-8186-XXXXXXXXX to 

==> /var/log/openhab/openhab.log <==

2021-06-28 15:23:36.656 [ERROR] [nal.common.AbstractInvocationHandler] - An error occurred while calling method 'ThingHandler.handleCommand()' on 'org.openhab.binding.amazonechocontrol.internal.handler.EchoHandler@1d03520': POST url 'https://alexa.amazon.de/api/cloudplayer/queue-and-play?deviceSerialNumber=G0123456789&deviceType=A23456789&mediaOwnerCustomerId=A1ABCDEFGH&shuffle=false' failed: Bad Request

org.openhab.binding.amazonechocontrol.internal.HttpException: POST url 'https://alexa.amazon.de/api/cloudplayer/queue-and-play?deviceSerialNumber=G0123456789&deviceType=A23456789&mediaOwnerCustomerId=A1ABCDEFGH&shuffle=false' failed: Bad Request
	at org.openhab.binding.amazonechocontrol.internal.Connection.makeRequest(Connection.java:691) ~[?:?]
	at org.openhab.binding.amazonechocontrol.internal.Connection.playAmazonMusicPlayList(Connection.java:1309) ~[?:?]
	at org.openhab.binding.amazonechocontrol.internal.handler.EchoHandler.handleCommand(EchoHandler.java:481) ~[?:?]
	at jdk.internal.reflect.GeneratedMethodAccessor77.invoke(Unknown Source) ~[?:?]
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
	at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
	at org.openhab.core.internal.common.AbstractInvocationHandler.invokeDirect(AbstractInvocationHandler.java:154) [bundleFile:?]
	at org.openhab.core.internal.common.InvocationHandlerSync.invoke(InvocationHandlerSync.java:59) [bundleFile:?]
	at com.sun.proxy.$Proxy408.handleCommand(Unknown Source) [?:?]
	at org.openhab.core.thing.internal.profiles.ProfileCallbackImpl.handleCommand(ProfileCallbackImpl.java:80) [bundleFile:?]
	at org.openhab.core.thing.internal.profiles.SystemDefaultProfile.onCommandFromItem(SystemDefaultProfile.java:48) [bundleFile:?]
	at jdk.internal.reflect.GeneratedMethodAccessor76.invoke(Unknown Source) ~[?:?]
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
	at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
	at org.openhab.core.internal.common.AbstractInvocationHandler.invokeDirect(AbstractInvocationHandler.java:154) [bundleFile:?]
	at org.openhab.core.internal.common.Invocation.call(Invocation.java:52) [bundleFile:?]
	at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
	at java.lang.Thread.run(Thread.java:834) [?:?]