Issue with nRF Util crashing if I have certain device (Otii ARC) connected

[Mathew Key]

Hi,

I am using "nrfutil" v8.1.1 and "device" 2.15.2

If I have my Otii ARC plugged into USB, then "nrfutil device list" crashes nrfutil with it complaining about "serialport-lister\src\lib.rs:49:60". If I unplug the Otii ARC then the other two JLink devices are listed fine (JLink and an Arduino Nano 33 BLE). 

It sounds a lot like the issue in  nrfutil device list command fails except that this combination of devices was working 6 months ago on another machine (which I no longer have access to). So something appears to have been updated in the nrfutil software which has either reintroduced the same issue or this is something new. 

Im going to follow the suggesting in the linked issue about installing older versions of nRF Util until I can find a version that works. 

I also see the same issue in the nRF Programmer - so assuming thats using the same "device" logic behind the scenes.

Mat

  

[Mathew Key]

I have turned on the RUST_BACKTRACE and can see its complaining about "Option::unwrap on a None value"

[Mathew Key]

This is failing on two different laptops running Windows 11

[Mathew Key]

Doing the WinObj step from the other issue is showing the Otii ARC as COM5 with a symbolic link of \Device\USBSER000. So guessing that might be the error - having COM0

[Mathew Key]

As a test (and following the other issue) I have manually forced "device" back to the older version of "2.7.8" as mentioned in that thread using "nrfutil install device=2.7.8 --force" and now nrfutil device list is NOT crashing

[Mathew Key]

2.11.0 is fine. 2.12.0 crashes. So the bug/issue was introduced sometime around then. 

Happy to test with the subversions to help you find the exact version number that introduced it, but will need someone to let me know WHAT subversions there are for me to try