I asked for ProtoOASubscribeLiveTrendbarReq M1, sometimes if get M2

Hi There,

I have a strange problem. I use this:

def sendProtoOASubscribeLiveTrendbarReq(interval: int):
    print(f"sendProtoOASubscribeLiveTrendbarReq")

    request = ProtoOASubscribeLiveTrendbarReq()
    request.ctidTraderAccountId = ctidTraderAccountId
    request.period = ProtoOATrendbarPeriod.M1#interval
    request.symbolId = 1

    deferred = client.send(request)
    deferred.addErrback(onError)
    deferred.addCallbacks(sendProtoOASubscribeLiveTrendbarRes, onError)

    return deferred

But, sometimes the data is M2, instead M1. What am I doing wrong here?

Regards,

Jon