Yamaha DTXTREMEIII Kit Lag?

[-One-]

My band's drummer doesn't have an account here, so I'm posting this on his behalf.
He's currently playing an electronic kit, a Yamaha DTXTREMEIII, to be exact. We're supposed to practice tomorrow, and today, his kit is suddenly lagging between the hit, and when the sound is triggered, by approximately five seconds. He seems to think the issue is the wiring. Does anyone have any suggestions to fix this?

 

[SargeantVomit]

Call up the customer service department, that sounds like something that happened internally and since that's a new model of those drums they must still be under warranty.