Custom connector: refresh in Desktop without clearing cache gives 'The key didn't match any rows'

Hi bl_g It might be because of the difference between cached metadata and the dynamic structure of your custom connector. To fix this, disable metadata caching using [IsResourcePathRequired = false], and implement schema refresh logic in your connector. Minimize overly dynamic structures where possible and guide users to clear cache only as a last resort. Debug with Data Source Diagnostics to pinpoint schema mismatches.