Scheduler not updating correctly the time when event moved

Hello guys, I was playing around with the scheduler and realized that if I use the scheduler to show only the hour,

timeHeaders: [
{ groupBy: "Month", format: "MMMM yyyy"},
{ groupBy: "Day" },
{ groupBy: "Hour", format: "HH" }
]

If I move an event from 11 am to 13(1 pm) it gives me the time of (1am) instead the correct time, any ideas on how to solve this?

Greetings!