TypeError: Argument 1 passed to Drupal\block\BlockViewBuilder::view() must implement interface Drupal\Core\Entity\EntityInterface, null given

You can trigger this also just by trying to display a block whose token doesn't exist, such as adding a character to the end of a valid block token. Ex: if [block_token:my_module:foo] is a valid block, try to render [block_token:my_module:foo2]. You get the above error.

Added a fix to check for the block before attempting to render it. Credit should go to ICF, not ZDS Group.

This is a critical fix. In our case the way we were inserting tokens, one out of every 1,000 or so was getting inserted in a way that got corrupted— not a case of you know immediately there's a problem. Fatal errors should be caught and handled whenever it can come from content, as josephcheek's merge request does.

Committed, thanks!

Automatically closed - issue fixed for 2 weeks with no activity.