This may be new - I haven't seen it reported before.
What do you mean exactly?
Is the display of the bonus points missing, or are you positive that they aren't added to your XP account?
For the former, I know that there's a similar display flaw in the bonus points for the CC. Despite the differing bonus % for my XPs and the CC XPs, the same number is shown:
but the correct - higher - number is added to the CC.
There's a chance that only the display is wrong in your case, too.