Bailing polyps seems to be a sign of stress. Same with budding of baby polyps. Its the corals last ditch effort at survival/ spreading its genes.
Although no one knows exactly for sure, its been seen as a repeated occurrence with these types.
Its horrible advice, but just try your best at providing appropriate care, and hope for the best. I know I preach hope is not a strategy, but so little is known about the exact care of these guys.