You are so wrong with your attitude. I'm happy the plane works for you but this does not entitle you to ask a paying customer to do "homework" to make a product work properly. This is Inibuilds job. I'm a customer, I have my job, my family and my free time (which I have not to waste working for Inibuilds). The problem does not happen "only to some", it's not just the people posting in the forums, just a few post the issues in forums, and the vast majority just look in the forums for a solution but do not post (I'm sure you know that).
You say "tests have to be made to make sure things work the right way", Yes, that's called BETA Testing, and a complex product like a fidelity aircraft needs extensive BETA testing. It's obvious the A300 has not gone through a long BETA testing. The issues reported since day one are deal breakers (FMC freezes, CTD, the plane falling out of the skies,...) we are talking about people who have paid and can't use the plane.
I have all the addons any simmer has in 2024, and all of them work like a charm, so the problem is the A300, not the addons I'm using.
Regards