Now I know what you trying to do.
Check the .asr file for messages like:
Fault 0 Convergence Failed
Warning: Code B - fixed at boundary
Also is the Compnt/StndErr zero for your variance components?
Look at the .vvp file, it is probably full of zeros.
These indicate problems with the model and/or the data. There is probably not
sufficient information in the data to fit the model you want to.
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