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Jesus, Google is absolutely useless. I can't find any pages whatsoever on the sudo config option, passwd_timeout. You know, the one that configures how long it will sit there with a password prompt on the screen before deciding, "timeout" and self terminating in failure. I had to find the post outlining its use on the Arch wiki for sudo, because of course, every post on Google about sudo timeout deals with the timestamp_timeout, or period before it will require a password again on invocation.
Setting the former to 0 in sudoers or a sudoers.d file will prevent it from self terminating if you, say, leave a terminal based update process running for hours and forget about it, only to notice it again later.