Hi,
I think my problem comes from the fact that your manual :quick start is not precise enough concerning the explanations of the installation of the database.
Indeed, you put in example P3d in installation, but you could have detailed the installation concerning FS20 under steam.
Knowing that the user can install the FS20 files which are very heavy on another disk, which is my case.
and therefore the installation of FS20 steam is at 2 places:
1 / the installation of Fs20 under steam which is:
C:\Program Files (x86)\Steam\steamapps\common\Microsoft Flight Simulator\
And on my disk I: is the folders and files of fs20 see the 2 images below.
And therefore, I wonder if the problem does not come from there, because your software has correctly identified that the FS20 folders are indeed on my disk I: but after celà Database that it shows PD3 in the database, when it should be FS20.