it is frustrating but quit funny to read 
Last night, I was reading that topic → Link to Pedro’s VILD method
That guy sugggests to always do 2 RC, in case one would FAILED!
The few time I did RC, they worked and got me LD, but I already had the feeling it was a dream… I guess you really have to believe the RC will work. Maybe, if you pinched your nose and thought and really believe you would not be able to breath, well, your brain tricked your RC.
My advice, always have a 2nd backup RC, just in case 
Also, take a look at that LINK above, quit interesting!