Down Arrow Error

I have had the same issue twice now when hitting the down arrow on my keyboard to initiate a U-Turn. Each time has been after a workout in ERG mode. ERG was off and I was free riding, when hitting the down arrow my speed instantly slows down to between 13-15 mph no matter my watts or grade. The only way to fix it is to save my ride and start a new one. I even tried unpairing my trainer and repairing with no luck. I am using the Mac desktop version of Zwift. Just wondering if anyone else had this issue, or knows of a fix? Thanks

I expect this is related to this known issue: