Flight Director doesn't disappear on landing

Performing an ILS approach with two FD on ( master side captain) and both NAV on ILS frequency, at 50 FT RA the bars of FD doesn't disappear and remain on PFD on ground. In autoland instead they disappear at 50 Ft without  problem. 

I had version SP 1C only 800/900 , FSX + UTEX+ FEX and FSUIPC registeresd ( but the axis are form FSX and NOT by FSUIPC)