Thanks for the suggestion and help.

Spent hours and hours scouring the internet for solutions. Most no start forum posts are for pre-2008 vehicles. The 2010 uses EWS4 which, according to BMW technical documentation, does not require manual syncing to the DDE. They auto-sync via handshaking over CAN. Attempting to use the EWS reset in INPA unfortunately results in an error message stating that no reset is possible because it is EMS4.

I'll likely just end up re-flashing the DDE as that seems to be the culprit.

It would be nice to know what specifically caused this!