Thank you for your response! Just to clarify, I lived in Illinois before moving to New York halfway through the year (which is why I'm filing part year returns for both) but I also had income from California. Illinois taxed the income from California (hence the double tax on the California income and the need to file a schedule a form CR for IL to obtain credit). However, it seems the error is more so with part-year returns that include schedule form CR being unable to e-file, as Turbotax gives me the option to print out the file and mail it in.
I didn't have an issue last year e-filing when I was a full year resident of IL and filed a schedule CR for the double taxed income in California.
