I am having the same issue. I first claimed the tax credit myself as parent (my child as dependent) then amended the tax return not claiming it, so my child can claim by filing an independent tax return. After my child tax return was rejected, I called TurboTax support and was advised to wait till my tax is processed. However, it is still rejected. From this post, I realize will have to file a paper return.
Thanks for the reply. I wish I had read the post before trying to figuring out why my child tax return was rejected many times.
