If you only changed the reporting address to another valid address, then DMARC processing should not be affected.
You didn’t write neither your initial nor your changed DMARC record or reporting address so we can but guess as to why your reporting seems to have ceased.
However, if you are or used to be EU based, and your change was prompted by recent messaging on the portal or by mail from dmarcian.com or from dmarcadvisor.com, then you may want to look at DMARCian EU data breach - Community Area - dmarcian forum and make sure who’s portal you are using.
