get out of sync (with someone or something)

To stop happening, functioning, or moving at the same time and pace as someone or something else; to be in an unsynchronized or uncoordinated manner. If your teammates have gotten out of sync, you're going to have a hard time getting this project done correctly and on time. If the coolant system gets out of sync with the energy output, it could lead to a core meltdown. Those soldiers were punished because they got out of sync while marching.