quiet failure without error message

I am not getting an error message, but the model seems to be not running. I run the ful model and get a GREEN status, then I set the paths moderatign the loadings to 0 and run the nested model ... and nothing. It even reports 0 observed statistics.

How can I troubleshoot when there is no eror message?

> summary(FactorConfigFIout)
data:
$Moderated FI Model.data
The final iterate satisfies the optimality conditions to the accuracy requested, but the sequence of iterates has not yet converged. NPSOL was terminated because no further improvement could be made in the merit function (Mx status GREEN).

free parameters:
name matrix row col Estimate Std.Error
1 l1 A y1 F1 1.44802605 0.05510917
2 l2 A y2 F1 1.02700153 0.03129520
3 l3 A y3 F1 1.26738868 0.04337198
4 A y1 d_L1 -0.04388849 0.64922665
5 A y2 d_L2 -0.43635869 0.38242596
6 A y3 d_L3 0.14825860 0.55658115
7 A F1 d_F1v 0.09840665 0.40637149
8 A y1 d_r1 -0.05362828 0.04982028
9 A y2 d_r2 -0.44351948 0.06173807
10 A y3 d_r3 0.19566532 0.04162130
11 u1 S y1 y1 2.88522312 0.12568855
12 u2 S y2 y2 0.36705920 0.04068190
13 u3 S y3 y3 1.74437864 0.08607359
14 i1 M 1 y1 6.32458998 0.05755780
15 i2 M 1 y2 7.73262409 0.02995602
16 i3 M 1 y3 6.28814298 0.04359621
17 M 1 d_i1 3.90123137 0.35153257
18 M 1 d_i2 5.48107782 0.48278127
19 M 1 d_i3 3.01220220 0.29538403

observed statistics: 6143
estimated parameters: 19
degrees of freedom: 6124
-2 log likelihood: 22072.42
saturated -2 log likelihood: NA
number of observations: 2354
chi-square: NA
p: NA
AIC (Mx): 9824.423
BIC (Mx): -12736.76
adjusted BIC:
RMSEA: NA
timestamp: 2010-12-02 14:06:20
frontend time: 0.3740001 secs
backend time: 33.819 secs
independent submodels time: 0 secs
wall clock time: 34.193 secs
cpu time: 34.193 secs
openmx version number: 1.0.3-1505

> FactorWeakFI <- mxModel(FactorConfigFI,
+
+ name="FactorWeakFI",
+ mxPath(from=c(latentsY), to=dummies, arrows=1, free=FALSE, values=0),
+ mxData(vmFrame, type="raw")
+ )
>
> FactorWeakFIout <- mxRun(FactorWeakFI)
Running FactorWeakFI
> summary(FactorWeakFI)
observed statistics: 0
estimated parameters: 0
degrees of freedom: 0
-2 log likelihood: NA
saturated -2 log likelihood: NA
number of observations: 0
chi-square: NA
p: NA
AIC (Mx): NA
BIC (Mx): NA
adjusted BIC:
RMSEA: NA
timestamp: NULL
frontend time: NULL
backend time: NULL
independent submodels time: NULL
wall clock time: NULL
cpu time: NULL
openmx version number: NULL