New Post: Publishing Issue Code 6BA

Unfortunately the link doesn't really give a solution

In fact,, it does ! By reading Adobe's page and my previous post, you should realize that you are using a WRONG Msi product code !!!
Your "IsInstallable" rule say : Adobe Flash Player 12.0.0.70 is installable if Adobe Flash Player 12.0.0.44 is not installed !!!
and your "IsInstalled" rule say : Adobe Flash Player 12.0.0.70 is installed if Adobe Flash Player 12.0.0.44 is installed !?!?!?

Is the answer to stop this and roll out a newer version?

To my knowledge, there is not newer version than 12.0.0.70. You have to revise the update and use the correct MSI product code.