we are using OTRS 5.0.10 and we use 3 Systems on LInux. One Customer System, one Development and one for our extern Development. Now we have an issue i can´t fix. I will try to explain:
There is an old Development Ticket in System 1. Than we want to develope and send an Article to System 2, that the extern Developer get´s the information. When the autoreply for the new generated ticket in System 2 comes back, than the Subject field is filled with the last generated Ticketnumber from System 1- thats totaly wrong!
esp. the Auto Reply Subject: [ORD#xxx0012] RE: [Ticket#xxx0000507] D [...] [DEV#xx0040]
ORD# ist the Ticketnumber from System 2,
Ticket# is the old Ticketnumber from System 1,
and at the and there is a Ticketnumber DEV# this number is the last generated Ticketnumber in the System 1 (we changed the SystemID 3 month ago with splitting the systems in 3, all new tickets in System 1 get DEV# numbers)
So why there is the wrong ticket number at the end?
I checked Sysconfig and
Ticket::NumberGenerator::CheckSystemID is NO, because of the old Tickets, when i switch to YES, than the Autoreply of this example ticket above will go into the wrong Ticket DEV#
What did i wrong? or is this a bug?

Thanks for your help.