Snapshot fails when new column added to schema

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Snapshots not automatically adding new column to snapshot table in databricks

Docs indicate this should happen automatically

FAQ on adding a new column to schema: What happens if I add new columns to my snapshot query? | dbt Developer Hub

What I’ve already tried

If I manually add the new column to the snapshot table, dbt snapshot works. I’ve also tried changing the strategy to timestamp, but the same error occurs

yml definition for the snapshot in question

snapshots:
  - name: case_snapshot
    relation: ref('ephemeral_monolith_cases') #data type transformation in the ephemeral model #source('monolith', 'case')
    description: Historisierung von case 
    config:
      schema: snapshots
      catalog: "{{env_var('DBT_ENV_NAME') ~ '_domain_dwh'}}"
      unique_key: cse_app_id
      strategy: check #timestamp
      check_cols: all
      #updated_at: cse_changed_date
      hard_deletes: new_record
      #pre_hook: "Select * from "
      # dbt_valid_to_current: "to_date('9999-12-31')" # Specifies that current records should have `dbt_valid_to` set to `'9999-12-31'` instead of `NULL`.