We ran into an obscure error recently, when saving a view that used a custom views plugin. It was supposed to be a very simple extension to core's bundle (content type) filter:
InvalidArgumentException: The configuration property display.default.display_options.filters.bundle.value.article doesn't exist. in Drupal\Core\Config\Schema\ArrayElement->get() (line 76 of [...]/core/lib/Drupal/Core/Config/Schema/ArrayElement.php).
Several contrib projects ran into this issue too: Drupal Commerce, Search API and Webform Views integration. There's even a core issue that looked relevant... but it turned out to be a simple, if perhaps surprising fix. If you ever run into it, it will have a different property (i.e. due to whichever plugin or default...
