AIR 3.7

I had a complaints from Android users that were getting the error "package file was not signed correctly" when trying to install my app.  I found one of my test devices had the same issue (Galaxy Note).  Most didn't see if but other apps I compiled and tested on the Note using 3.7 also had the same issue.  When I reverted back to 3.6, it worked on all test devices.  Any one else have this isse?