I am doing Frontline for the event tomes and evey 2-3 one it says I received the tomes but my total doesn't increase. My inventory isn't full and I have some in inventory.

I verify texts <below> to insure I got credit in text but not receiving them. It is not consistent, happens every about 3rd frontline run.

[20:28]You cannot carry any more Allagan tomestones of poetics.
[20:28]You obtain 5 irregular tomestones of mythology.
[20:28]You gain 1150000 gunbreaker experience points.
[20:28]You obtain 600 Wolf Marks.