assistive touch freezes after update to iOS10.2

Hello,

Earlier I had an issue, which I observed after updating my iPhone 6S to 10.1.1

- The Phone app freezes, nothing can be done - until you kill the app (double click and swipe off)

- Secondly when you go to contacts app, you cannot search by typing name. The only solution for Contacts app search to be fixed is by doing a soft reset. But even that will work hardly 2 days, after which Contacts app doesn't allows to search.

Now after updating to iOS 10.2 yesterday, that issue has been resolved. Not seen it until now (keeping my fingers crossed).

But I observed another issue: Now the assistive touch is freezing.

The assitive touch becomes unresponsive and does not works. it doesn't recognize your touch. Only after you press the home button and change the orientation from Portrait to landcsape or vice versa, that it starts working again.

But this repeats after some time and you need to repeat the above steps again so as to get it started.

Has anyone observed this issue ? If yes, is there any other way to fix this or we need to wait until the next update.