I looks like the issue is your naming of your data field. Your measure can’t use a similar name like format as its reserved for internal use within the power bi commands.
Please check all your data field names/calculated fields. Also make sure your data fields are setup correctly (data type).
Without seeing your data model, we can’t really see what you are doing.
Hi @svada, possible to send your working PBIX file to help Keith and other members see the scenario better? Providing one will help users and experts find a solution to your inquiry faster and better.