On Wednesday 20 January 2021 the Dutch government announced additional measures to prevent the spread of the UK variant of the coronavirus. As a result of stricter measures, the exemptions on the European travel ban for professionals working in the cultural and creative sector are no longer in place. This means that these professionals will no longer be granted entry starting on 23 January 2021 at 00:01 AM (CEST). 

https://dutchculture.nl/en/news/exemptions-travel-ban-and-self-quarantine-professionals-cultural-and-creative-sector-covid19