I've encountered the same problem. No matter how many times I uninstall and reinstall it, when I load the A350 on the runway, the loading speed is very fast, but the aircraft lacks landing gear, the avionics system is black, and when I open the WASM folder, it is empty with a size of 0Kb. The first time I installed it in the default C drive, the A350 could be used normally. However, after I uninstalled it and then reinstalled it in the D drive, I couldn't use it no matter what.