Are you using the right grid? It looks like you may need to try France Lambert Zone 3 rather than Zone 2.
P.S. There was definitely no Luftwaffe action in the area of Les Chanoines on 29 August, everything that could fly had left a week or more earlier.
I've written about 29 August action on my website:
http://www.ghostbombers.com/recon/109/Kaatsch/kaatsch4.html and made a map as well:
http://www.ghostbombers.com/recon/10...kaatscha1.html
If you have any more about the combats in my web article I'd be really interested to hear about it.