spectre nested sweep in MC run fails to "export" expression

 Here is my netlist(analysis part of.., produced from ADEXL):

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simulatorOptions options reltol=1e-3 vabstol=1e-6 iabstol=1e-12 temp=70 \
    tnom=27 homotopy=dptran scalem=1.0 scale=1.0 gmin=1e-12 rforce=1 \
    maxnotes=5 maxwarns=5 digits=5 cols=80 pivrel=1e-3 \
    sensfile="../psf/sens.output" checklimitdest=psf
mc1 montecarlo numruns=1 seed=12345 variations=all sampling=standard \
    donominal=no scalarfile="../monteCarlo/mcdata" \
    paramfile="../monteCarlo/mcparam" saveprocessparams=yes \
    processparamfile="../monteCarlo/processParam" \
    processscalarfile="../monteCarlo/processData" savemismatchparams=yes \
    mismatchparamfile="../monteCarlo/mismatchparam" \
    mismatchscalarfile="../monteCarlo/mismatchdata" \
    dumpdependency=mismatch \
    dependencymapfile="../monteCarlo/mismatchdependency" \
    savefamilyplots=yes savedatainseparatedir=yes firstrun=15 {
swp0 sweep param=EQ values=[0 1 2 3] {
dcOp0 dc write="spectre.dc" maxiters=150 maxsteps=10000 annotate=status
dcOpInfo0 info what=oppoint where=rawfile
ac0 ac start=10K stop=10G lin=1 annotate=status
modelParameter0 info what=models where=rawfile
element0 info what=inst where=rawfile
outputParameter0 info what=output where=rawfile
designParamVals0 info what=parameters where=rawfile
primitives0 info what=primitives where=rawfile
export real Gain100k0=oceanEval("value((dB20((VF(\"VOP\") - VF(\"VON\"))) - dB20((VF(\"CHINP\") - VF(\"CHINN\")))) 1e+4)")
export real Gain13G0=oceanEval("value((dB20((VF(\"VOP\") - VF(\"VON\"))) - dB20((VF(\"CHINP\") - VF(\"CHINN\")))) 1.0e+10)")
}

}
mcOptions options genmcdep=yes
save V10CUR:p V33CUR:p VIP_IN VIN_IN I1.I1.CTLEOUT2 I1.I1.CTLEOUT2B VOP \
    VON CHINP CHINN I1.I1.I0.CTLEOUT1 I1.I1.I0.CTLEOUT1B I2.I15.M7:1 \
    I2.I15.M17:1
saveOptions options save=selected
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 Here is files generated in psf dir:

artil.log       

logFile     

mc1_ac1.montecarlo  

mc1_dcOpInfo.montecarlo        

mc1_element.montecarlo        

mc1_outputParameter.montecarlo 

mc1_separate
ipvs_ui.msg.log 

mc1.mapping 

mc1_dcOp.montecarlo 

mc1_designParamVals.montecarlo 

mc1_modelParameter.montecarlo 

mc1_primitives.montecarlo      

spectre.out

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The "mc1_separate"is a dir containing sweep result files:

 -rw-r--r-- 1 workareas        0 Aug 20 10:40 ipvs_ui.msg.log
-rw-r--r-- 1 workareas     1231 Aug 16 21:31 logFile
-rw-r--r-- 1 workareas     4872 Aug 16 21:30 mc1_swp-000_ac1.ac
-rw-r--r-- 1 workareas     4036 Aug 16 21:30 mc1_swp-000_dcOp.dc
-rw-r--r-- 1 workareas  4012008 Aug 16 21:30 mc1_swp-000_dcOpInfo.info
-rw-r--r-- 1 workareas   183276 Aug 16 21:30 mc1_swp-000_designParamVals.info
-rw-r--r-- 1 workareas  4437996 Aug 16 21:30 mc1_swp-000_element.info
-rw-r--r-- 1 workareas 32983396 Aug 16 21:30 mc1_swp-000_modelParameter.info
-rw-r--r-- 1 workareas  1109648 Aug 16 21:30 mc1_swp-000_outputParameter.info
-rw-r--r-- 1 workareas    13935 Aug 16 21:30 mc1_swp-000_primitives.info.primitives
-rw-r--r-- 1 workareas     4872 Aug 16 21:31 mc1_swp-001_ac1.ac
-rw-r--r-- 1 workareas     4036 Aug 16 21:31 mc1_swp-001_dcOp.dc
-rw-r--r-- 1 workareas  4012008 Aug 16 21:31 mc1_swp-001_dcOpInfo.info
-rw-r--r-- 1 workareas   183276 Aug 16 21:31 mc1_swp-001_designParamVals.info
-rw-r--r-- 1 workareas  4437996 Aug 16 21:31 mc1_swp-001_element.info
-rw-r--r-- 1 workareas 32983396 Aug 16 21:31 mc1_swp-001_modelParameter.info
-rw-r--r-- 1 workareas  1109648 Aug 16 21:31 mc1_swp-001_outputParameter.info
-rw-r--r-- 1 workareas    13935 Aug 16 21:31 mc1_swp-001_primitives.info.primitives
-rw-r--r-- 1 workareas     4872 Aug 16 21:31 mc1_swp-002_ac1.ac
-rw-r--r-- 1 workareas     4036 Aug 16 21:31 mc1_swp-002_dcOp.dc
-rw-r--r-- 1 workareas  4012008 Aug 16 21:31 mc1_swp-002_dcOpInfo.info
-rw-r--r-- 1 workareas   183276 Aug 16 21:31 mc1_swp-002_designParamVals.info
-rw-r--r-- 1 workareas  4437996 Aug 16 21:31 mc1_swp-002_element.info
-rw-r--r-- 1 workareas 32983396 Aug 16 21:31 mc1_swp-002_modelParameter.info
-rw-r--r-- 1 workareas  1109648 Aug 16 21:31 mc1_swp-002_outputParameter.info
-rw-r--r-- 1 workareas    13935 Aug 16 21:31 mc1_swp-002_primitives.info.primitives
-rw-r--r-- 1 workareas     4872 Aug 16 21:31 mc1_swp-003_ac1.ac
-rw-r--r-- 1 workareas     4036 Aug 16 21:31 mc1_swp-003_dcOp.dc
-rw-r--r-- 1 workareas  4012008 Aug 16 21:31 mc1_swp-003_dcOpInfo.info
-rw-r--r-- 1 workareas   183276 Aug 16 21:31 mc1_swp-003_designParamVals.info
-rw-r--r-- 1 workareas  4437996 Aug 16 21:31 mc1_swp-003_element.info
-rw-r--r-- 1 workareas 32983396 Aug 16 21:31 mc1_swp-003_modelParameter.info
-rw-r--r-- 1 workareas  1109648 Aug 16 21:31 mc1_swp-003_outputParameter.info
-rw-r--r-- 1 workareas    13935 Aug 16 21:31 mc1_swp-003_primitives.info.primitives
-rw-r--r-- 1 workareas     3432 Aug 16 21:31 mc1_swp_ac1.sweep
-rw-r--r-- 1 workareas     3432 Aug 16 21:31 mc1_swp_dcOp.sweep
-rw-r--r-- 1 workareas     3436 Aug 16 21:31 mc1_swp_dcOpInfo.sweep
-rw-r--r-- 1 workareas     3444 Aug 16 21:31 mc1_swp_designParamVals.sweep
-rw-r--r-- 1 workareas     3436 Aug 16 21:31 mc1_swp_element.sweep
-rw-r--r-- 1 workareas     3444 Aug 16 21:31 mc1_swp_modelParameter.sweep
-rw-r--r-- 1 workareas     3444 Aug 16 21:31 mc1_swp_outputParameter.sweep
-rw-r--r-- 1 workareas     3440 Aug 16 21:31 mc1_swp_primitives.sweep
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questions:

1. why the "export" was not executed?

2.  how to plot an expression from resultsdirectory?

what i am trying to achieve is do a DC followed by an AC within each MC run and nested with a sweep of a parameter.

 appreciate any feedbacks.