that is wrong with this afcad or KLAX addon ?
There's nothing wrong with the AFCAD, as you can check very easily with the same ADE program you said you used. As you can see there, ALL runways are opened for both take-offs and landing, at least this is how they are in the AFCAD we supplied the scenery with.
You said you modified it, and it's still "wrong" and this should have proven to you that, the problem is not how we made the AFCAD, but the thing is not entirely under your (or our) control, but in fact is more complex than it seems and just closing or opening a runway doesn't have the effect you expect, which is why we keep them all open by default.
The method the sim uses to assign a runway is based on a COMBINATION of factors, with wind being a factor only if it's higher than a certain amount, otherwise the runway length and the presence of an ILS will get priority.
And if you are using a 3rd party weather engine, this might complicate things, since you cannot be sure if weather set using Simconnect is read instantly by the ATC engine so it can change the runway assignment in time.
Of course, nothing we can control from the scenery AFCAD, as you seems to have realized here and nothing else in the scenery other than the AFCAD runways has any effect on the runway assignment so no, the scenery doesn't have anything "wrong".
