I had installed Maya 2020 some weeks back but cleared it from my PC and I have recently been trying to install it again but it only gives me the option to install the add-ons (Arnold, Bitfrost and Substance). This is all I see so it appears as though Maya 2020 is already installed on my hard-drive because it won't let me install it again but I genuinely do not have the app. Is this a problem with the installer or could it just be my PC?