Thank you for posting this. I just sealed mine (2022 RCS).
I saw in a different thread you replaced your fork. What model did you get? Are you satisfied with it? Thanks.
The large connector plug that is associated with the 2022 RCS off-road controller upgrade doesn't snap together with the on-bike plug. It can shift slightly and lose connection. Happened to me and has been posted on FB by others. I firmly seated and then used a zip tie to hold in place.
All devices have an accuracy and a dead band to stabilize action. 10 mph may be too low a speed for the controller. Have you tried a higher speed like 15 mph?
I had initially bought the Altus but the orientation of the barrel adjuster was different compared to the Twoo. Would have required that I replace the entire length of cable housing. The Alivio had the same orientation.
I changed out the rear derailleur and shifter for a Shimano Alivio. My bike was purchased in January 2023. I don't know if current shipping models are the same component items.
I think there may be some confusion on the reviewer's part relative to closeout. According to the JB website the clear aluminum finish bike is being discontinued and on closeout. The black and red are still listed as current.