It sounds similar to problems I experienced with my KICKR Core. Mine was a bearing issue. Fortunately, my unit was under warranty and they swapped it for a refurbished unit at no cost.
I would send a support ticket to Wahoo with a short video attachment. I don’t think the fix is overly complicated if you’re mechanically inclined. I’m not too gifted in this area.
I sent a support request to Wahoo. They replaced my unit with a refurbished unit at no charge. They were very prompt in getting the refurbished unit to me. The only downside is they won’t ship the refurbished unit until the carrier notifies them you have shipped the defective unit.