Talk to a consultant just yesterday and he mentioned that if the agent find any thing she is not sure, she will put a note to review it later in 30-90 days so the file went to sleep mode while the process other cases and will remind her later. This is extremely unfair I believe and you can only find it out if you get the CAIPS notes when they put something like "check later in 30 days" code. For now I am worried any case before 3 May that have not heard anything maybe in sleep mode. The problem is if we request for CAIPS notes then it takes 90 days to get a response which is too late to find out. I would not bother checking this any more, the whole process is so unfair, any minor issue will put your application to bottom of the queue. Maybe we just need to wait and let fate decide, if our parents can join us then we can be happy, if not just be patient.