This has happened twice now. my first character does not get the AD bonus every night. three nights ago and last night it happened. As I am building both character equally, and want the extra coin for doing it, they finish the prayers around the same time.
I started salvaging on my main and got just the base amount. Then switched to my second character and got the base amount plus the bonus. I do all my salvaging just before logging out for the night and as I did not salvaging and run just two queue's per character again at the end of the day (RIQ and RLQ) that cannot be why...I don't get close to 100k rough AD a night between both characters combined.