I personally haven't received any today. Are you getting these mails for multiple projects or just one particular one?
Have you checked your logs to see what happened at the moment you received the emails? We got them too when we had an out of memory problem. The container automatically restarts so there is not much else you notice from it.
I used to get the false positives for 3 projects like clockwork, since the recent fix I haven't received any false positives any more. Have you checked with support? Last update I recall stated something about the root cause not being found yet, so perhaps your case can help finding this.