Watts Get Stuck at Certain Numbers?

Hi, I use Android and Zwift version 1.0.60640. I have a “dumb” Road Machine trainer, and connect it to Zwift with a speed sensor through ANT+. I recently changed the battery in the speed sensor, and ever since then, my speed changes when my power does not.

I really don’t think it’s possible for me to bike at such a consistent power. This has happened previously, but I managed to “fix” it for a couple of days before changing the battery. Previously, it seemed to get better after doing an FTP Test, but I tried that again yesterday, and it doesn’t seem to have had an affect, so that might just be a coincidence.

Any suggestions would be appreciated, thanks.