[mapguide-internals] trunk rev 4670 fails on Sheboygan Map with FDO Exception

[UV]

Hi,
I am attempting to get a debug build of trunk rev 4670 working
I tried to run it with the FDO 3.5 RC1 SDK as well as with trunk version 
5389 on windows.

trying to render any image for the sheboygan map (or any other) the code 
on line 56 fires an FDO exception trying to do:
ExpressionHelper .cpp:56:     userDefinedFunctions->Add(funcIf);

in the log we find
<2010-03-17T20:18:26>     7680    Ajax Viewer    127.0.0.1   
 Error: Failed to stylize layer: (ANY LAYER)
        An exception occurred in FDO component.
        Item index out of bounds.

what is going wrong here?