iOS ion-datetime failed to show input text for first load

Ionic Framework
1

ion-datetime failed to show input-text after changing. I need to flip or change orientation then it will works. Web and Android mode are working fine. Anyone suggestion?

testing
testing600×931 1.72 MB

<div id="date-section" [@visibilityChanged]="visibility3" style="opacity: 0">
			<div style="margin:40px;">
				<ion-item>
					<ion-label position="floating">{{ 'CHECK_IN_DATE' | translate | uppercase }}</ion-label>
					<ion-datetime (ionChange)="changeSDate($event, 1)" displayFormat="YYYY-MM-DD" min="{{this.startDateS}}" max="{{this.endDateS}}" value="{{this.startDateFinal}}" ></ion-datetime>
				</ion-item>
			</div>
		</div>