Hi Moshe Habas,
Sorry for the inconvenience.
Issue 1. While bind the change event to DateRangePicker it throws an console error.
Issue 2. When clear the value it throws an console error like "TypeError: Cannot read property 'dotnetInstance' of null".
We were able to replicate your reported problems in DateRangePicker component. We have considered this as a bug at our end and the fix will included on our upcoming patch release which is expected to be rolled out on today EOD (May 30,2019). You can track the status of those problems by using below feedback portal link.
Please let us know, if you have any concern on this.