JSONPATH transformation failed from MQTT events from Shelly Plus

Hi Openhab Community, I have a problem with JSONPATH transformation. I have the following setup: Openhabian 3.4.4 on a Rpi 4 MQTT Broker from Openhabian running on the Pi Shelly Plus 2PM with a Shelly Plus Addon where a contact sensor The contact sensor is on a window and is supposed to track if the window is opened or closed. The Shelly Plus 2PM is connected to my MQTT broker. When the window is opened/closed a event is triggered there and appears to be correct: On the right side you

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