@forexsieno Did you solve this one?
I'm still getting the same error.
Using 3.3.0-SNAPSHOT
2022-08-08 02:21:23.200 [ERROR] [col.serial.MySensorsSerialConnection] - Exception found
java.lang.IllegalStateException: Serial Port Identifier not found
at org.openhab.binding.mysensors.internal.protocol.serial.MySensorsSerialConnection.establishConnection(MySensorsSerialConnection.java:59) [bundleFile:?]
at org.openhab.binding.mysensors.internal.protocol.MySensorsAbstractConnection.connect(MySensorsAbstractConnection.java:145) [bundleFile:?]
at org.openhab.binding.mysensors.internal.protocol.MySensorsAbstractConnection.run(MySensorsAbstractConnection.java:124) [bundleFile:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) [?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) [?:?]
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:829) [?:?]