Not Receiving BONUS from dungeons

I started the dungeon with (Tank) and had already just leveled. (34 with just a few thousand exp.)

After the dungeon it says,

You gain ~69000 exp.
A BONUS of 69000 has been awarded for swift completion, etc...

But after I was done.

I was only ~79k into my level. (The same level - 34)

I should have walked away with over 140k + Bonus for being a tank.

I've noticed this problem since the most recent updates. (I'm currently leveling other characters and noticing I'm not always receiving the BONUS reward OR the -main- reward. One is not being added to the total.)

The 69000 IS the bonus. They're just really dumb and position the "a bonus of" text after the text you got the exp.

Yeah this is simply the way the text reads the bonus xp is what you're awarded at the end of the dungeon the 69k xp and it tells you why you received said xp.

I don't know which Bonus you are talking about but this are the boni you can obtain in duties:

• Needed role: you have queued as a less played role in the roulette, mostly tank
• Random duty: Daily bonus for completing a roulette
• Firsttimer: there is a character in the party who hasn't completed this duty before
• Swift completion (Guildheist only): The Guildheist was completed within a special timeframe
• No one died (Guildheist only): No one died in the Guildheist
• Some people died (Guildheist only): lesser reward then no one died

For your example "swift completion" was from a guildheist and the boni and basic exp from guildheists are very low in comparsion with a normal dungeon.
And your bonus for being a tank will only be awarded if you queued as tank in a roulette and the adventurer in need bonus was locked on tank.