Thank you so much for the bug report! I confirm it is happening on 5_rev10. It appears to have been introduced when we upgraded to the PICO 2.0 SDK.
The last firmware compiled with SDK 1.5 works for me with Windows.
For Windows, be sure to use the custom compile of sigrok. The nightlies were not working for me.
I will push a fix ASAP, but it will take a day or two.