Container not initialized in module_implements_alter()

Can you try applying this patch?

https://www.drupal.org/project/drupal/issues/3484754 🐛 Ordering of alter "extra hooks" is a gigantic mess Active

This fixes a regression with hmia. I'm not sure it's related. But it's worth a try.

The issue I mentioned in my previous comment will not help here.

Unfortunately you'll need to refactor this portion, it falls under:
Breaking changes
Conditionally defined hook implementations are not supported.

You'll likely want to actually implement
field_encrypt_entity_insert()
field_encrypt_entity_update()

And check the entities in there:

function field_encrypt_entity_insert() {
  if (in_array($entitty_type, \Drupal::state()->get('field_encrypt.entity_types', []) \Drupal::service('field_encrypt.process_entities')->decryptEntity(\$entity);
}

That will allow you to remove eval from this bit of code too which is a nice bonus.

You can still use hmia then to order your hook where you want at that point.

I'm going to close this as works as designed and I'm gonna move the relevant bit to: 📌 Support OOP hooks Active

Thank you very much for the quick response and clarifications!