Hi, we have a Jenkins declarative script that schedules a set of stages across a set of agents using:

parallel p

This has worked well, but since early August stages are being randomly killed.
The log for the main job simply shows:

Killed

The log for a killed stage shows:

Cannot contact <server>: java.lang.InterruptedException

The system log shows:

org.jenkinsci.plugins.workflow.steps.durable_task.DurableTaskStep ... waiting for ... unresponsive for 3 min 0 sec
...
org.jenkinsci.plugins.workflow.support.concurrent.Timeout lambda$ping$0

Please will you suggest a fix or workaround?