I set it up and did a small test for the first time on Zwift today. I ensured tyre pressure was appropriate and I understand there is a natural feel to the ride on rollers. Is the natural feel bumpy? A feel like the wheel is buckled but it isn’t, maybe something due to the way I set it up?
If you are feeling a thump-thump-thump it’s either one of two things:
Your tire is not seated correctly. Deflate and work the tire around the rim.
There is damage to the tire. I used a tire that had a screw through it with a boot on my trainer. It would thump at the same place every revolution of the tire. I’ve replaced the tire and the thump went away.