Time remaining for all pipeline jobs is N/A

Since upgrading to Jenkins 2.100, all Jenkins Pipeline Jobs have started showing barber poles, and reporting the time left as N/A, despite some of them having run thousands of times, and should have plenty of run information to at least give some perspective on the time remaining.

As over 90% of our jobs now use pipeline or declarative pipeline, I thought that all jobs were experiencing the issue, however Freestyle projects seem to report their time remaining just fine