To troubleshoot further I need to get some log files from you. Please review the FAQ Where do I find the Flash Player installation log on the Macintosh? and provide all four files (Adobe_ADM.log, Adobe_GDE.log, install.log, and FlashPlayerInstallManager.log) listed. Please read through the FAQ first before doing anything.
After obtaining all four files, upload the files to cloud.acrobat.com using the instructions at The specified item was not found. or some other file sharing service of your choice that doesn't require login to access. Post the link to the uploaded files in your reply.
I run a dual-boot 10.6.8/10.10.5 Mac. I just simply complied the raw plug-in
(which is the latest) to the other partition (it works).
Sorry, I don't have the time. If it happens on the next update, I'll send the