probe-rs: micro:bit v2.20 fails to keep stable connection

Describe the bug

After a while (depending on the using probe-run or cargo embed) both terminate with:

RTT error: Error communicating with probe: A core architecture specific error occurred
────────────────────────────────────────────────────────────────────────────────
Error: A core architecture specific error occurred

Caused by:
    0: Failed to read register DRW at address 0x0000000c
    1: An error specific to a probe type occurred
    2: Error handling CMSIS-DAP command Transfer
    3: Timeout in USB communication.

To Reproduce Steps to reproduce the behavior:

1. Flash
2. Let it run
3. boom

probe-run fails after 5-30 seconds. cargo embed after ~15 minutes.

Expected behavior

It should be as stable as the micro:bit v2.00.

Stacktrace

n/a

Desktop (please complete the following information):

Fedora 36

Additional context

• https://support.microbit.org/support/solutions/articles/19000132336-bbc-micro-bit-v2-interface-processor-change-v2-2-

I also tried upgrading the interface firmware from 0256 (shipped) to 0257. This doesn’t seem to make a difference.