Still busy trying to get the root issue fixed.
@macmanx thanks for the tip. Helped us to realise our root chain something something is incorrect so busy fixing that.
@trabeculae We managed to do a workaround in the meantime by changing the rss aggregators code to ignore insecure links in the curl call ( equivalent of -k)
If it is the same issue, it may be fixed when ssl issue is fixed. But will post once I hear back from systems on an eta to fixing it.