Hi Alan,
I had RARP surgery about 10 weeks ago (1st October to be exact). I had exactly the same as you about 3/4 weeks ago, so around the 6 week mark. For about a week my urine was either normal colour or had a bit of a pinkish tint to it and at time there were "bits" in the toilet that shouldn't have been there. Like you my nurse said it was a combination of scabbing coming away or clips dissolving.
I must admit that since then my continence situation has vastly improved. I'm on 1 pad a day on most days except when I go to the gym.
I did have a bit of a cold man flu last week and I must admit that sneezing has become a bit of a nemesis 😂
Good luck with the rest of the recovery. Only tip I can give is be careful on the days you feel good and healed, it doesn't take a lot of doing too much for the discomfort to kick in.