The code minimum check is working as expected in a test model here. If you would like us to review your model, please share it using the Secure File Upload link at the bottom of the page and then post the file name here.
Also, note that the code minimum check is applied separately to the top and bottom layers. More on that is discussed under "What is the significance of defining the reinforcement “Slab Face”: Top, Bottom, or Both?" on the web page below: