I e-filed 2 MFS returns today that were on an Extension and after they were accepted, the line 6 on the 9325 was blank. The previous accepted date and submission ID for the Form 4868 is gone.
Line 6 is also now blank on the original MFJ return that I filed the extension on. Glad I printed the 9325 when it was accepted in May.
I'm guessing the update today created the issue because all the returns with extensions that I filed previously are OK.