There have been new schematron files published yesterday:
https://porezna.gov.hr/fiskalizacija/bezgotovinski-racuni/eracun

The new validations will be used from 25.01. 08:00 am, see this announcement: https://porezna.gov.hr/fiskalizacija/bezgotovinski-racuni/bezgotovinski-racuni-novosti/o/azuriranje-validatora-f2