Hi, I got the problem with ILS landing.

I have set FMC correctly to land at VTBS RWY 19L, 01R and in WSSS at RWY 02R. The problem I faced after install sp1.4 is that the aircraft not line up at the centre of the runway even it is intercept by localizer. the green mark indicated that aircraft not in the centre as well it is on the left from the middle point.

Since the update I have only ever intercepted in the middle 1/10 flight. So i need to disengage auto pilot to line up in the centre myself and turn on auto pilot for approaching. Sometime need to do manual landing myself.

What I should do to make my aircraft line up at the centre and make a nicely approach and landing?