AutoCAD Inventor :: Parameters Not Calculated - Can't Rebuild With UI Or ILogic

In the attached file there is a User Parameter, "Antal_ledekasser". Inventor has calculated its value to 2.

If you do the math by hand then you see the value should be 5.

Rebuild doesn't force recalculation.

There is an iLogic rule in the part, but this also fails to force recalculation:
iLogicVb.UpdateWhenDone=True
InventorVb.DocumentUpdate()
ThisDoc.Document.Rebuild2
ThisDoc.Document.Update2
 
Manual work around is to change the formula, then the value is recalculated.

iLogic work around is to change a parameter-value - and run the rule TWICE.

Question: How do I force a real rebuild, that actually wil recalculate parameter-values the first time I run the iLogic rule?

 Background: The attached file is a little subset of the skeleton in a large assembly that is controlled by iLogic. The rules are placed in the topassembly, and writes vaules to the skeleton-file.

After writing values to skeleton-parameters I try to force them through with this iLogic
RuleParametersOutput()
InventorVb.DocumentUpdate()
iLogicVb.RunRule("Skeleton", "Update")

Later in the process I use calculated values to decide which components should be active. But my logic fails because my decisions are made on faulty values.

I did manage to get the updating work in 2011. But after migrating to 2012, it seems impossible to have it update correct. The user has to run rules several times, and doing manually updates to get a correct model.