I meant to say that "Streaming not enabled" is totally normal. It only means that no value has been received yet.
The other possibility is that the sensor was scanned by another app and has to be scanned again.
It absolutely does not mean that there is something wrong with the sensor.
I expierend the same Issue with some F3 sensor. I also started the sensor with Libre 3 App, but the sensor won't work neither with Libre3 nor with Juggloco. The Juggloco App shows in the sensor menu 'streaming not enabled'. A view weeks ago I had two sensors with the same effect.
Last Friday again the same issue. The following solution solved my problem: I installed the new Version 6.0.4 on my phone and turned off the Watch. I selected from the new property 'Android' in the Sensor menu of Juggloco App. To my surprise this helped and the sensor worked and showed glucose values. In the sensor menu 'streaming not enabled' had changed to 'streaming enabled'.
I assume that the Sensors are not always faulty. I think the error is triggered by the Watch's Bluetooth connection.
I recommend to turn off any unnecassary Bluetooth connections then starting a new sensor.
I will try this next time.