Yep coz that is what we pay for a product that might or might not work , maybe they should put that in the T & Cs so i dont spend my hard earned money on software which may or may not work
Isn't the whole point of having a Try-before-buy product ?
Oh but wait it is my setup or me not clicking the install button correctly . Getting a bit annoyed with it now , fix it or give me a refund !! . I own all your sceneries so i would say im a loyal customer .
I keep having Teamviewer sessions while I'm posting this, and not in a single one of them the problem was ever CAUSED by GSX or the Addon Manager, it was always something else, FSUIPC in one case (problem known), Ezdok camera in another, the antivirus in another case, the EXE.XML file manually edited with errors in another case and in one case there wasn't even a crash, we installed it, and it just worked.
Only in one single case, the Teamviewer session helped finding an issue with slow loading when Orbx sceneries are installed, and this has lead to an update which is already online, but that's just for speed up the loading times, there was never a problem or a crash.
So, your best option is do what I've been asked to everybody, and contact me in private to arrange a Teamviewer session, so we'll find what's really causing it, in your case.