When doing a scan a few days ago, Avast! version 2014 produced false positives being Macrium Reflect. I never had a FP and didn't know what to do and clicked on a few buttons in panic.
Since the v 2015 came out I have been reading this forum about the changes and problems with the 2015 that don't seem to be addressed.
Avast! should focus on being an antivirus and doesn't need to be a bloated software with bells and whistles that only cause problems. I always had to do a custom install in the last years.
I have been an Avast! user since version 4.8 and must inform you now that I have uninstalled Avast due to the above and of course installed another AV who's only objective is to be an antivirus and nothing else. I know that you don't care about losing a customer but if you continue on the same path, you may lose quite a few customers.