$ionicmodal failed when keyboard open

[israelor]

hi, i have an input inside modal but when the keyboard is open the modal is gone and i got white screen:
my view:

<ion-view view-title="someScreen" align-title="right">
        <div class="kidGardenProfile" ng-repeat="kid in kids">
            <div class="item item-avatar-right">
                <img src="./img/arya.jpg">
                <h2>{{kid.name}}</h2>
                <button class="button button-balanced-100 button-small" ng-click="updateKid(kid)">
                    <b>edit</b>
                </button>
            </div>
        </div>
<button id="fab" ng-click="newcase()" class="button button-assertive button-fab button-fab-bottom-left">
    <i class="icon ion-person-add"></i>
</button>

my modal:

    <div class="modal">
    <ion-header-bar class="bar bar-header bar-calm" align-title="right">
        <h1 class="title">adding kid modal</h1>
    </ion-header-bar>
    <ion-content>
        <div>
        <label class="item item-input item-floating-label">
        <span class="input-label">firstName</span>
        <input type="text" placeholder="first name" ng-model="kid.name">
        </label> <label class="item item-input item-floating-label">
        <span class="input-label">cell</span>
        <input type="text" placeholder="cell" ng-model="kid.cell">
        </label>
        <button ng-click="addKidGarden()" class="button button-block button-stable ink" data-ink-color="#FFFFFF" data-ink-opacity="0.4">
        save
        </button>
        </div>

    </ion-content>
</div>

p.s.
in browser its ok, only on devices its happened.
here some photo:

thanks!