Update
Updating database... Please wait.
Sunday 10 December 2017 at 00:42
Ok, thanks everyone. I Checked everything. I pushed in all the connections, unplugged the machine, left power off for 5 minutes, then plugged back in and presto, it seems to be working. Bizarre. One of the Molex seemed a little loose, idk.
Source: http://pinside.com/pinball/forum/topic/batman-66-official-club-thread/page/146#post-4115783