For update: I uninstalled MSFS 2020 and 2024. It looks like problem is solved now.Unfortunately, I will need to reinstall all the plugins I uploaded. This is quite frustrating and will create extra work. However, it seems that the Inimanager program is mixing up the 2020 and 2024 programs. I couldn't fully understand the reason, because I first loaded the A350 on the 2024 simulator. Then, when I loaded it for 2020, the 2024 version got deleted on its own. It will really take some time to figure out exactly what happened.