After upgrading your system to Fedora 12, you may notice that some of your Adobe AIR applications no longer load properly. The problem may persist even after you have reinstalled both Adobe AIR and the individual Adobe AIR applications.
An error you may receive when installing the AIR applications is shown below:
Application crashed with an unhandled SIGSEGV
The above problem is caused by an invalid certificate file. Simply deleting the certificate file as shown below will cause your Adobe AIR applications to begin working again.
Run the following command from terminal to fix the problem:
sudo rm -rf /etc/opt/Adobe/certificates/crypt/