How do I stop my Android 4.2.2 tablet from changing the keyboard back to the default settings?

[AC Question]

My android 4.2.2 tablet keeps changing keyboard back to default settings

Hi,

I have an android 4.2.2 tablet and i have swiftkey keyboard installed on my tablet to customize the keyboard, but the tablet keeps changing my keyboard back to the default settings and default keyboard when the tablet is switched off or is not active for a while. how do i get this fixed?
FYI my tablet is rooted.