3/15/2021: This has been resolved
3/12/2021
The fix for this is scheduled to deploy the morning of Monday, March 15th. 1040-NR returns should continue to be held until this blog post is updated giving the all clear.
Scenario:
You are trying to create and submit an e-file for a 1040NR and receiving a message that you cannot efile because it contains form 1040NR
Workaround:
Hold the return
Solution: We are having our development team look into this to turn 1040NR e-file back on.