Xam.Plugin.TabView(CarousselView) strange in iOs

[karluz79]

I have an app that started with 4 tabs (main, company, contacts and products) and all worked well in all platforms.

Now I added another tab and in uwp and droid all went well but in some iOs devices it's kind of tricky.

I slide from tab 1 to 2 and the header selection remains in 1. when i slide to 3 the header changes for 2. etc.
If I slide from 4 to 3 after going from 3 to 4, the header remains in 4 and if then i slide to 2 the header goes to 3.
It has some king of delay.
If i touch the header it changes well.

In iphone 8 plus works well but in iphone 8 it doesn't.
In iphone 12 it doesn't but in 11 it does.
And i think that all iPad's work well.

I'm using VS2019, and using iOs simulators and physical iPhone 6.

When debbugging i've found that
TabViewControl_PositionChanged(object sender, Xam.Plugin.TabView.PositionChangedEventArgs e)
doesn't always trigger!

Any help to correct this?