Issue with autoarma and forclen option

I have the following code:

Code:

%m=@left(@date,2)                    
%d=@mid(@date,4,2)                
!year=2000+@right(@date,2)        

!annual1=2000
!annual2=2019

wfcreate arima_{!year}.{%m}.{%d} u !annual1 !annual2
%wfsaveloc="R:\Eviews\Workfiles\ARIMA"

'------------------------------------------------------------------Start with the monthly data and forecast------------------------------------------------------------------
pagecreate m !annual1 !annual2
pagerename untitled1 navdat_m

smpl @all

'Get the data and initialize forecast variables
FETCH(d=R:\Eviews\Databases\Main\nav_data_all_ts.edb) ovr_ecu_m11 ovr_ecu_m14 ovr_ecu_m22 ovr_ecu_m23 ovr_ecu_ktk ovr_ecu_oth ter_ecu_m11 ter_ecu_m22 ter_ecu_m33 ter_ecu_m34 ter_ecu_m35 enr_ecu_m11 enr_ecu_m22 enr_ecu_m33 enr_ecu_m34 enr_ecu_m35 dly_tot_dcu fy
'%vars="ovr_ecu_m11 ovr_ecu_m14 ovr_ecu_m22 ovr_ecu_m23 ovr_ecu_ktk ovr_ecu_oth ter_ecu_m11 ter_ecu_m22 ter_ecu_m33 ter_ecu_m34 ter_ecu_m35 enr_ecu_m11 enr_ecu_m22 enr_ecu_m33 enr_ecu_m34 enr_ecu_m35 dly_tot_dcu"

for %series {%vars}
    {%series}.autoarma(tform=auto,diff=1,select=aic,periods=12,maxar=4,maxma=2,maxsar=12,maxsma=12,forclen=12,agraph,atable,fgraph) {%series}_f
next

Historical data goes to 2017M09

I am getting "Number of forecast periods extends outside workfile range"

This should not be the case I don't think, as the workfile goes to the end of 2010. The error comes up even if forclen=1

Any ideas? Something silly I did?

---