The EU Commission provides a playground environment for EUDAMED in which the functionalities can be tested with dummy data.
On December 12 last year, this test data was made public without any further warning. So far, this step has not been reversed. You may want to check whether dummy data from your company is included that was not intended for publication, or whether real data was perhaps even used for testing purposes, contrary to the recommendation.
Both environments, production and playground, are linked here: EUDAMED environments