All (700+) tests worked locally, and for months on CircleCI, but now a random test will always fail


We run a big project and until recently tests were passing. Now tests that have existed for months will fail, which test to fail will be random. I can disable the test that fails, and kick off the build again but then another test will fail that previously was passing. These aren’t new tests, these are tests that have been running normally before, all work locally.

Is there some issue due to the number of tests or some issue with the duration of tests?

What could this be?

Here is the branch.

It would be best for you to raise this directly with the support team as they will have the ability to look at your dashboard results.