Hi Reuben.
Let me see if we can narrow this down. Are you trying to set the From Name in Opt In Email - Advanced Email, Module Configuration, Newsletter Settings/Template?
I actually just sent out a small email blast and was able to change the From Name but I made the change from Create New Email, Advanced Settings.
Can you please try in betasprings.com and test from both places and let us know which side is not working for you? Thanks!
Candace