I have 7 healthy adult cats. Their age ranges are 3 - 8ish years. One was a feral (the 8ish year old) The rest have either been adopted or came from the feral as kittens. I have always fed the cats Blue Buffalo Freedom Grain Free that is appropriate to their stage in life. Recently I gradually switched from Blue Freedom to Authority Grain Free due to the cost of Blue. With the switch came the urine smell that is OMG bad!! Has anyone else who is feeding Authority experiencing the same issue with the odor? I change the litter boxes daily and it smells as if it has not been changed in a week. I have switched litter 3 different times thinking that the litter brand has changed. I have used the same litter, Fresh Step, for years until recently. My thought is to switch back to Blue and Fresh Step and $180/month cost. Any other suggestions would be greatly appreciated.