Problem with editor mu & circuitpython on raspi pico

Hello everybody,

I try to follow the recent video "CircuitPython with Raspberry Pi Pico - Getting Started" (which is - again - a masterpiece).

When I connect the pico I am not able to use the REPL in mu. The host is Windows 10 and the pico is prepared with circuit python.

I discovered that I can connect with a terminal program (tera term) when trying different COM ports.

I had a look into the device manager and noticed that when  I plug the pico in I get *two* new COM ports.

So my questions are:

1. Is it normal / has anybody else seen two new COM ports when connecting the pico?

2. Can I order mu in any way to use the correct COM port?

BR,

Iserlohn