Yes, I’m using amazonechocontrol. Out-of-memory was a good hint, I found this in the logs:
2020-06-14 16:34:07.018 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.core.internal.items.ItemUpdater@c0f1f1' takes more than 5000ms.
2020-06-14 16:39:25.713 [WARN ] [mmon.WrappedScheduledExecutorService] - Scheduled runnable ended with an exception:
java.lang.OutOfMemoryError: Java heap space
Would you recommend following your advice from Web Socket Error on AmazonEchoControl binding every 65 seconds although I’m using OH 2.5.3-1?