Installed RTD 1.5. It solved all my problems. Real data is coming and Backfill done without any fudging.
I am able to get BNF_F1, BNF_F2, NF_F1 and NF_F2.
Excellent Tool. Thank You Mr Josh.
Thanks to Vijkris, who suggested to use v1.5.
Cheers :clap::clap: