Humping after Neutering

Baxter used to love playing with his toy ball he used to push it around in circles with his nose..... Then started grabbing it and humping it.

He was neautered on the 8th of March so as it had been a number of weeks we gave him his all back to see if he would push it around again but he just started humping it again!

Is this normal after neautering? Will he always do this?

Rabbits still hump at times after being neutered, both boys and girls. So he's just a normal bunny.