Navbar acting strange on both iOS and Android

Try with this HTML to solve Android issue:

<ion-header>
    <ion-navbar hideBackButton color="pastelblue">        

        <ion-buttons start>
            <button ion-button icon-only>
                <ion-icon name="swap"></ion-icon>
            </button>
        </ion-buttons>
        
        <ion-title>
            myTasks
        </ion-title>
        
        <ion-buttons end>
            <button ion-button icon-only end>
                <ion-icon name="add-circle"></ion-icon>
            </button>
        </ion-buttons>        

    </ion-navbar>
</ion-header>

<ion-content padding>

</ion-content>

iOS issue is duplicated: