An icy vent line may have caused Blue Origin to scrub debut launch of New Glenn
by Eric Berger from Ars Technica - All content on (#6TH67)

COCOA BEACH, Fla.-With 45 minutes left in a three-hour launch window, Blue Origin scrubbed its first attempt to launch the massive New Glenn rocket early on Monday morning.
Throughout the window, which opened at 1 am ET (06:00 UTC), the company continued to reset the countdown clock as launch engineers worked out technical issues with the rocket.
Officially, both on its live webcast as well as on social media following the scrub, Blue Origin was vague about the cause of the delayed launch attempt.