Then the strings added are airport_visibility_LIMF = 0 and airport_visibility_LIPY = 0 but this generate the GSX message of the post object.
It's entirely normal you would see such message from GSX, if you added THIS string to the airport visibility because, you have told GSX to exclude any airport name LIPY or LIMF from GSX so, GSX it's obviously complying to your request, and have excluded them.
The meaning of this string is NOT to "I have problem with this airport, so set it at visibility 0 to automatically fix it". What the string is used for, is to exclude ANOTHER airport, with ANOTHER ICAO, which is either too close to the one you have a problem with, or it's inside of it.
Such airports will have a *different* ICAO from the main one, which might be either a real one (because the real one *is* very close), or it's a fake one. So, it's THI (other) ICAO you must exclude, not the main one!
I'll quote from the GSX Manual, Page 24:
A real world example of this might be OrbX’s Monterrey Regional Airport - KRMY, which comes with an auxiliary AFCAD with an added code for the (fictional) KMRZ airport. By default, GSX might find the fictional KMRZ is closer to your position, and use that one instead of the main KMRY, which is probably what you wanted to use.
To fix this, the line added to the [GSX] section of the CouatlAddons.INI file would look like this:
airport_visibility_KMRZ = 0
This will prevent GSX to use KMRZ, and prefer the larger airport instead, which is the most common case.
Which is why, I told you to go to the place where the parking are not recognized, and check which ICAO is used, and verify if the problem is in fact a problem of another airport too close. IF this is the problem, THEN you can use the airport_visibility command to fix it.
If the problem is something *else*, for example another AFCAD in conflict, the airport_visibility is useless, because you MUST fix the conflicting AFCAD problem.