Frontline not giving me full exp?

Today i did duty finder frontline with my reaper (level 72).

I got 1,3 mil normal and 1,3 bonus and like 300 k for frontline itself.
I started with level 72 with 1mil exp from the 3 mil needed to level up and i ended with level 72 with 2.6 mill from the 3 mill needed. Despite seeing in the chat i got almost 3 mil exp i really ended with 1.6. So for some reason i didnt get the bonus exp? I was my first frontline of the day so ibwas eglible for the rewards.

Anyone can help with why i got less exp?

Were you still on RPR when you exited? For example, Challenge Log bonus exp is applied to the job you are on when you leave, not the one you entered with.

I entered an left as reaper

The messaging is a little misleading. It actually is a double message for the same xp. What you got was 1.3 + 0.3 = 1.6.