KER compatibility issues with RealFuels+KW Rocketry?

[Tank Buddy]

EDIT-SOLVED: The root part of the craft must be in the payload. Derp.

I have installed Kerbal Engineer Redux, RealFuels (stockalike configs), RSS, and KW Rocketry.

The following occurs when using a craft made of KW, stock only, or mixed parts: the Delta V readout does not include all stages or miscalculates them in the VAB; when staging a "missing" stage, KER will pop up a new value that replaced the previous stage in the in-flight HUD. This seems to be a new development since I installed KW.

Here is the craft file: https://drive.google.com/open?id=0B6xMgDmf09ewbjVUTTdTZndHc2s

The delta V readouts change inexplicably.

Mods all updated to most recent through CKAN:

KER

RSS

RealFuels with stockalike configs (Solver Engines Plugin included)

Crossfeed Enabler

RealPlume

KW Rocketry + community fixes

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Any insight is appreciated.

Edited September 3, 2015 by Tank Buddy