Dear Eli,
My BASIS team has just confirmed that note 1121876 is invalid for our current version.
Re your concern "...I don't understand why you are not able to derive the grant via FMDERIVE"
my response:
"As a matter of fact, there is no field of Grant in transaction screen (please refer to image I pasted above in main thread) so there should be no question of filling it manually or through derivation rule."
This is something confusing which has made me stuck.
I have also requested BASIS people to raise OSS note for this.
Regards