[crazy4cats]

Hi Maureen-
Sorry to hear about the return of crystals in your pup. Sounds like you are doing a great job of making sure she is getting plenty of water and bathroom breaks. However, I caution the use of too many supplements without vet knowledge. Both DL-Methionine and cranberry supplements can alter the pH of her urine. You could over acidify and cause oxalate crystals instead.
I would feed the Royal Canin until the issue is cleared up and then go from there. Good luck!