are you trying to publish for android?
if yes, did you create a valid certficate?
if yes again, can you publish an empty apk using that certficiate?
Please let us know, which Player Target you are trying to publish to : AIR for Desktop/AIR for Android.
Are you trying to use AIR3.6 or any other SDK using Manage AIR SDK?
If possible, provide the scenario file so that we can repro the issue.
I think I have resolved this.
I foolishly was publishing across our server. Once I moved the file to my machine and published to my machine, it appears to have created a good file. If it turns out I still have problems I will be back with all the data you requested.
This seems like a bug. I'm publishing to a terrablock which has never been a problem in the past. Only worked for me if i go to my desktop.