set gradient text in qml show rectangle rather than text!

[m.abed]

Hi
I am trying to set gradient text in qml but on some android devices it show gradient rectangle on the text

how to solve this?

Thanks

[m.abed]

This on android device
https://www.dropbox.com/s/n33hoiz1n1oumqx/2- wanted text.png?dl=0

and this on other device
https://www.dropbox.com/s/dfr2jg2a0h9rnwz/1- image bug.jpg?dl=0