So upon further investigation, reason being i thought i was mistaking overflow for the free ships. i have discovered that when i place an order for a ship that would take 2 turns to create, once again set it to auto repeat and then cut of all sponsor production by switching to 100% social spending. the ships then come out once per turn despite with full military spending, it would have taken 2 turns. this however didn't last past 3 ships, which leads me to believe it must have been using accrued production. in any case, a small suggestion or rather a small request would be to have some tool tip display the total overflow collected thus far. 

In any case il leave this post up as for a time i genuinely thought this was a bug and maybe others did too, and the tooltip would be handy for displaying overflow.

Cheers again.

I may be stupid but i cant see what your referring too, i see the tool tip that displays current production being sent to the yard in this case it says 0/360 as im no longer sending production to it. but i cant see anywhere else that id expect to see an overflow tip.

Thanks for the response however.

This is correct, however I would note that if there is no accrued  production, then hovering in the indicated area shows nothing.   I think it ought to display "Zero accrued porduction" or some such to make it less confusing.