Endsub on right side not working (reledpar reledmac)

I’m having trouble with some problems in reledmac/reledpar. I’d like to use the startsub and endsub which is working fine on the left side, but on the right side, the endsub is not working correct. In fact it won’t leave the sublinetation again.

Here is an example for the problem, see the footnote numbering.

documentclass[twoside]{scrbook}
usepackage[]{reledmac}
usepackage{reledpar}
setlength{parindent}{0pt}

begin{document}

title{Edition}
begin{pairs}
    begin{Leftside}
        beginnumbering
        pstartstartsub
         {edtext{Test}{Afootnote{Test}}}
        endsubpend
        pstart
       Lorem ipsum {edtext{dolor}{Afootnote{Test}}} sit amet 
       consetetur sadipscing elitr
       pend
       endnumbering
    end{Leftside}
    begin{Rightside}
        beginnumbering
        pstartstartsub
         {edtext{Test}{Bfootnote{Test}}}
        endsubpend
        pstart
       Lorem ipsum  {edtext{dolor}{Bfootnote{Test}}} sit amet 
       consetetur sadipscing elitr
       pend
        endnumbering
    end{Rightside}
end{pairs} 
Columns

end{document}