Blue Origin canceled its New Glenn rocket’s debut launch in Florida on Monday, citing an unspecified technical problem.

New Glenn was slated to deliver a satellite prototype to the Cape Canaveral Space Force Station. The rocket’s first booster was meant to land on a floating platform in the Atlantic Ocean shortly after launch, a stunt that has previously delayed the launch when the waters were rough. This time, Blue Origin explained its engineers would need “to troubleshoot a vehicle subsystem issue” that indefinitely delayed the launch.