I don’t know where to report this. Don’t hesitate to tell me if it is not the good place
When using the beta CSV import feature (by drag and dropping csv file), the “import” button disappear when several columns are present in the CSV file (and we have to unzoom to make it appear) :
you can put this bug into the “Bugs”-category - i think that’s the right place for it. Additionally you can submit the bug to the Coda Support Team if you want to.