This afternoon I logged on to find my game skipped the last quest in Act 1, skipped ALL of Act 2, and most of Act 3. I am currently in Hell mode, I appropriately completed Normal and Nightmare modes.
And yes, the game is allowing me to enter Act 3, quest 7, in Hell mode.
I know this is an easy fix on my end but figured it would be nice to let the powers that be know, just in case.
I'll be "restarting" from Fallen Angel now..