type: 'box' in DataSet ignores 'end' parameter

[unknownFrequency]

Hi

I'm using v.7.5.1 graph2D - minified version.

When defining items as DataSet and use the param type: 'box' the width of the box is the smallest possible rectangle as it seems like it ignores the 'end' param.
Once I remove the type: 'box' from the parameters (it should, according to the docs, default to 'box') it suddently has the right width.
Using 'range' also works as it should.

let timeline_container = document.getElementById('timeline-container');
if(typeof coordinates !== 'undefined' && coordinates) {
  this.options = {}
  let items = new vis.DataSet([
	{
	  start: '2022-07-03 13:00:00',
	  end: '2022-07-16 16:00:00',
	  type: 'box',
	},
  ]);

  let timeline = new vis.Timeline(
    timeline_container,
     items,
     this.options,
  )

  timeline.addCustomTime(start_date, 'the_id');