Canvas UI Panel animator issues

Hello,
I have an animator attached to a UI panel and that panel contains another panel with a scroll rect whose
content contains a number of items.
I have a simple slide in animation, however there seems to be some serious issues when sliding in on my fire tablet in that its some times jerky and when touch scroll it blacks out and scroll resets to start, also other parts
of the App start behaving strangely.
The issue appears to be using animator where child elements contain a scroll rect, as other slide ins on elements that do not contain a scroll rect work fine.
If a manually slide in with code on my panel with my scroll rect it works fine.

Note it works fine in editor and on my galaxy s8 but not my fire tablet which leads me to believe that I would probably see the same issues on various other android devices.

 

Update

After getting same issue on a scroll rect without animator with manual slide in, I tested my prev working App from unity 2017_1_1 in lastest Unity 2017_3 and it did same thing on scroll rect as above misbehaving strange issues, so
I switch back to Unity 2017_1_1 all isues disappear