Unexpected ion-segment-button hover event

I see some strange behaviour while using segment: sometimes, then clicking segment button i see, that happens some event (may be hover) and segment button become colored, but value change event not fired. From this point i see two colored segment button: one selected and one hovered. What can i do with this behaviour?

On this image second button selected and fourth hovered.

This is reproducible only on devices, not in browser.

Cordova CLI: 6.5.0
Ionic Framework Version: 2.0.0-rc.4
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.0.0
ios-deploy version: 1.9.0
ios-sim version: Not installed
OS: macOS Sierra
Node Version: v7.3.0
Xcode version: Xcode 8.2.1 Build version 8C1002