Problem on cypress test with drag and drop on fullcalendar

I want to test to drag and drop on a full calendar event (change the date of a task) with Cypress, the test passes but the event was not dropped :

This is the test implementation :

Then('I move a task to another date', () => {
    cy.get('.fc-event')
        .trigger('mousedown', { which: 1, pageX: 188, pageY: 196 })
        .trigger('mousemove', { which: 1, pageX: 188, pageY: 261 })
        .trigger('mouseup')
})

I test it with this plugin https://www.npmjs.com/package/@4tw/cypress-drag-drop but same results , the event did not move :

Then('I move a task to another date', () => {
     cy.get('.fc-event').drag(':nth-child(3) > .fc-bg > table > tbody > tr > .fc-thu', { force: true })
})