I downloaded this product from the Just Flight store yesterday (29th). The downloaded file has the filename PA38_Tomahawk_MSFS_v012b.zip so I assume this is the version with the GPS fix? Once installed and I launch the aircraft, it appears more examples of confusing versioning information is evident on the actual EFB which display v1.0 in the top left. This really does seem like poor versioning practice. Going by the logic of the pinned changelog post Update change logs - v1.2 (0.1.2b) released (edited 26/4/24) showing the fixes for Fuel Selector and other fixes, the version should now be v1.2 but the EFB clearly shows v1.0 and I click on the GPS button, it sequences through the available GPS options, gets to PMS50 GTN and then stays there. If I click the sound plays as though it's swapping out the instrument but the panel still shows the GTN in place. Something seems very wrong.

@Thor_999 said in Buxton/Peak Forest Extension:

I've just bought the Buxton/Peak Forest extension. When i selected a quickdrive route from Tunstead Quarry to Leicester, there is a problem with the wagons that have been placed in the sidings at Tunstead. They block the tunnel mouth so that you cannot leave the sidings where you start this quickdrive journey.

Sounds like what I saw and mentioned up thread about the same starting point. I think you can delete the offending wagons via the editor as a workaround.