I agree compression fiting are just that. They need to compress to seal. I usually undertighten them and check for leaks. Then tighten if needed. You were right in your previous post. once you over tighten them it is rare to seal a leak because there is just no more give in the flare.
I this case I must have not been paying attention when I removed the banjos and didn't realize they needed washers. I took these apart 2 years ago. I must have forgotten
Thanks for the help.