Issue with Drupal 8 CiviCRM Views + CiviCRM event
I just checked and this is working using the latest D8 CiviCRM Entity - it is under development, so best to use the latest directly from its GitHub Repo:

https://github.com/eileenmcnaughton/civicrm_entity/tree/8.x-3.x


If you're interested in helping us to advance/accelerate this development - consider becoming a Maker/sponsor of the D8 integration projects (D8 Webform CiviCRM and D8 CiviCRM Entity) modules.