Scrollview's scroll thumb(handle) not draggable with touch, but can be dragged with mouse.

[AYYAPPA]

hi all,

i am using qt quick 1.4 for scrollview .
earlier i had qt 5.6.2, with this version the scroll thumb(handle) dragging was working with both touch and mouse.
recently i updated to qt 5.9 and Scrollview's scroll thumb(handle) dragging stopped working with touch, but can be dragged with mouse.

is this something to do with qt version update or the version of scrollview i am using ?

please let me know if there is anything i could try.

thanks,
ayyappa.