Okay, I have heard the cd today, dug it out from my hundreds of Ellington cds. . .
It's Django with Duke Ellington Orchestra, Chicago November 10, 1946. The material appears on the excellent two cd set The Great Chicago Concerts, on Music Masters.
Track 11 on this J Bird cd is "Ride Red Ride" on the Great Chicago Concerts cd one, and track 12 is "Honeysuckle Rose" on the same Chicago Concerts cd. (Also on the Chicago Concerts cd as mentioned above is "A Blues Riff" and "Improvisation #2". . . .)
As far as I can tell even though he had appeared with the Orchestra in Cleveland before this and Stl Louis and possibly other cities after this, this Chicago show is the sole known recording of Django with Ellington.