US BP not sent to China

[TeaLeaf]

yeah, preliminary is very important, since during (and after) final production planning there are some things that cannot be changed anymore indeed.

...Which is exactly the problem with lend leasing BPs.
You can imagine the disruption of the CW production planning if, for example, the Calcutta BP is set up to be sent to China (with just enough convoys as needed in every sea area) but after saving, exiting and reloading the game suddenly the London BP is sent to China.

If this happens during or after final production planning... You guessed it: it cannot be changed anymore.
Truth be told: I often do not have enough time to play from preliminary all the way through production. So usually I have to save before/during final production planning, which causes quite a problem for both China and the CW.

Just for the record: when I set a factory as source for a lent BP, I do this with the default window open (after clearing it). Apparently to no success.

[Shannon V. OKeets]

ORIGINAL: 4personalbusiness

If the route were insufficient for some reason, the game wouldn't accept it in the first place. And it often happens when trying to use home country saved oils for production. You assign the saved oils to production, the game accepts this and you think you are golden. Then, you move to the builds screen and the oils have been reset to being saved. I believe this was a known issue discussed at length in another thread.

And, the weird thing is the problem is intermittent and takes different forms. For example, sometimes the builds screen and <ctrl-P> screen don't even agree. Take a look at this screen cap and see if it makes any sense to you. The builds screen reads 20 bps but the <ctrl-P> screen still says 17. Odd.

One of the first things that happens during the Production phase, is that the program gathers all possible saved build points and puts adds them to the available BPs. Once that is done, there are no more saved BPs on the map. Unless I miss my guess, that is what you are seeing here. Note that BPs sent in trade arrive as Saved BPs.

There is one rule which interferes with this sometimes. Only a limited number of Saved BPs in a hex can be used per turn (the number is unlimited in a capital). So if you sent 4 BPs to Murmansk from the Commonwealth, then 4 saved BPs would arrive in Murmansk and at the start of the Production phase, 2 would be removed and added to the count of BPs available for production. Two saved BPs would remain in Murmansk for the next turn.