NASA had 3 years to fix fuel leaks on its Artemis moon rocket. Why are they still happening?

NASA halted a critical fueling test for its Artemis 2 rocket due to persistent hydrogen leaks, echoing issues from the Artemis 1 mission. Despite significant progress in fueling both SLS stages, the test was aborted at T-5 minutes 15 seconds due to a hydrogen leak spike. NASA officials believe the leaks may be due to vibrations during the rocket's rollout to the launch pad. The Artemis 2 launch is now targeted for March, with mission managers aiming to address the hydrogen leak issue at the launch pad.