I had this exact same issue, except I had 1 share vest which was sold to cover taxes (part of two total grant vests so this 1 share was immediately sold). The question in the flow says 'shares sold to cover taxes' so I put 1. When I changed this to zero, the error went away and I made sure that there was a 0 gain on the sale. So all good in the end, but definitely a confusing question. Putting this here in case anyone else runs into this issue. Also, thanks for having the exact same problem 🙂
