Amending a 2023 VA state tax return

I tried to file electronically an amended 2023 VA state tax return. I get the following error: Tax Year 2023 transmissions are not available. TurboTax is not ready to process Tax Year 2023for amended returns.

 

Additionally, on one of the screens after I entered the amount paid or refunded on your original return, my amended return summary states that it didn't detect any differences between my original return and my amended return, and I have to provide an explanation.  How does it not recognize a difference in an amended return?  This amended return shows a refund, where as the original showed taxes due. 

 

In reviewing the file, it only shows taxes due, not my refund.  Something isn't right!