Since your Amended Return does not 'catch up' with your original return and correct it, you have up to three years to Amend.
Amended returns are processed separately, and can take several weeks to process.
I would advise trying to Efile your Amended return at a later date, or printing and mailing it.
You could try disabling anti-virus programs to see if it clears your transmission error. Here's How to Turn Off Anti-Virus Programs.
@sundrop34
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