On: Israel’s Beresheet Spacecraft Moon Landing Attempt...

[Voloskaya]

When you are floating along on a stable orbit the engines are off, so it's quite hard to have a failure in this context.

[ses1984 → Voloskaya]

Maybe the failure occurs as you are initiating acceleration burn, while you are in stable orbit.

[nkrisc → Voloskaya]

They could fail to ignite if you were attempting a burn from a stable orbit into another orbit.