My ionic2-calendar never shows monday events

Ionic Framework ionic-v3
1

Hello, here is my code to show a calendar2-plugin inside an ionic app.

<calendar formatWeekViewDayHeader=“EE d” [locale]=“calendar.locale” [monthviewDisplayEventTemplate]=“template” [eventSource]=“eventSource” [calendarMode]=“calendar.mode” [currentDate]=“calendar.currentDate” [startingDayMonth]=“calendar.startingDayMonth”

    (onRangeChanged)="onCurrentDateChanged($event)" [showEventDetail]="calendar.showEventDetail" [noEventsLabel]="calendar.noEventsLabel" (onCurrentDateChanged)="onCurrentDateChanged($event)" (onEventSelected)="onEventSelected($event)" (onTitleChanged)="onViewTitleChanged($event)"

    step="60" startingDayWeek="1">

</calendar>

The fact is that when the event onCurrentDateChanged fires, im sure that eventSource has events for all days of the week, from monday to sunday…but the mondays event is never visible…for the present week, and the followers…
what could be happening?

thanks.