Yes we have seen a few isolated instances where a member might have not been receiving one specific artists upload ebot and that was traced to there being a 'bad email" address for someone having that specific artist on their favorites list. This was causing the whole transmission to fail. So at that time in order to rectify this problem, we ran a report for invalid or bad email addresses and took the information on that report to remove all favorites from those members lists. Now on the new PHP platform, it won't allow you to have an invalid email address since you have to validate the new address in order for a change to go through.