When you repot plants, the roots no matter how healthy they might look, may suffer a bit and takes time to "recover the shock".
During this time, keep the plant away from too much light and water well.
Not necessarily more often as this might make roots to stay too wet too long and cause problems, soak them for a while and allow the plant to really absorb water. Then drain very well.
I see that the ridges on the pb isn't that severe, so they will most likely go away with a few good watering.
Even if they do not disappear, it's ok as long as they do not get worse, in which case, it might suggest that something is going wrong with the roots.
Do worry too much and enjoy the growing spike.