Any insights into seemingly random test failures appearing with new macOS 12 image

[DanPuzzuoli]

Hi,

Recently some macOS 12 CI tests in a package I maintain have started failing randomly (e.g. here). The especially weird aspect of this is that these failures are random (sometimes they pass, sometimes they fail), but the code in the tests is fully deterministic (as far as I am aware).

I'm at a bit of a loss - no idea what could be causing this, so thought I'd ask here to see if anyone has any insights.

[sergei-pyshnoi]

Hi @DanPuzzuoli . Can you please check image version in "Set up job" step for failed add passed tests ? Is there was the same or different?

[trzopekm]

@sergei-pyshnoi we experience random failures as well but in our case it's during yarn package installation using ubuntu-latest images (both 22.04 and 20.04). It started happening after Ubuntu 22.04 image update from 20230924.1.0 to 20231001.1.0, can you please help with that issue?