Page 43 in the manual, turn off the AUTO GPU DISCO option.
I prefer it on, makes sense to me.
You may want to adjust your tone a little, you are coming across as demanding and agressive. You may or may not have some flight time, although I don't know how many hours are in an A350, but it is obvious that you aren't a programmer.
I've completed a dozen flights and I'm happy with the money spent, there are issues, yes, but I'm confident that they will be addressed.
Oh and I get more WASM problems with aircraft from another supplier that begins with P!