Experimental build 24.3-2
I click on the Medium Station while medium plane is being serviced. Popup indicates that Baggage Unloading Not Requested I ensured each Medium Stand was connected to Baggage Bay. I even disconnected and Connected each stand to be sure.
In the default branch, baggage service was requested for all Medium flights.
Ey! then I need to apply baggage service to my airport, I liked it without, lot less hassle… lest build bagage service ASAP 
…
See; Lots of hassle
Something to check: in operations is baggage handling enabled? Sometimes it gets turned off if you break the connection between the cargo bay and baggage bay.
I just checked in Operations; Baggage Handling was Disabled. (I did not manually disable it). I enabled it. The next Medium jet then pulled into a Medium Stand. Baggage Unloading was still not requested
Was the slot granted when the service was disabled?
I believe it was granted.
That’s why I assume it did not request the service.
Solved. At some point, I had cleared the Baggage Claim link to the Baggage Bay, when I Deleted the Baggage Claim Zone. Then I reset the Baggage Claim Zone. HOWEVER, I did not connect the new Baggage Claim Zone to the Baggage Bay.
Bottom line: my bad.
And now, a NEW problem pops up: Baggage Loading Not Requested, even though Baggage Unloading was requested.
If it was a repeating flight, that can make sence, let the airport run for a week, until all repeating stuff is out of system, see if it is ok then.
Waited a week. Baggage Loading is now requested. thanks for your help.