It may be following a newly introduced non-standard leg since SU5.
There are three versions of the G1000:
G1000 stock - you didn’t install anything, it comes with the sim.
Working Title G1000 0.4.0 - this is a Mod installed in the Community folder; it’s the same as the stock sim one except it has additional engine data pages.
Working Title G1000 NXi - a free add-on obtained from the Marketplace and installed using the sim’s Content Manager.
Which one is your situation?
Please consider going to this B&I since they’re deep into the details already: