Deadlock on ReqLog table during MRP

Good afternoon,

in some cases we have a deadlock situation on table ReqLog during MRP. We found out that the following select statement is the problem

select firstonly pessimisticlock reqLog where reqLog.ReqPlanId == _reqLog.ReqPlanId && reqLog.ProcessId == _reqLog.ProcessId;

in method insertUpdate (Table ReqLog).

We configure our MRP as a multithrad job with 15 threads.

Does anybody has the same problem?

Best regards,

Marco