After filling in postcode and house number getting 'Validation unavailable, please use manual input.' instead of correct results (e.g. 'Unknown postcode + housenumber combination.' when filling in an imaginary combination).
After some debugging the problem became clear, with the module update the api.url went from https://api.postcode.nl to https://api.postcode.eu, though, this didn't get updated (automatically) in the database/config.
After filling in postcode and house number getting 'Validation unavailable, please use manual input.' instead of correct results (e.g. 'Unknown postcode + housenumber combination.' when filling in an imaginary combination).
After some debugging the problem became clear, with the module update the api.url went from https://api.postcode.nl to https://api.postcode.eu, though, this didn't get updated (automatically) in the database/config.
To fix temporary locally: Go to core_config_data table where path = postcodenl_api/development_config/api_url and change https://api.postcode.nl to https://api.postcode.eu.