Hi Guys .
Trying to install Pro Tools Vanilla 12.8.3 ,
- on my Mac Pro running OX10.12.6.
It's a fresh install BTW , with everything updated to latest versions.
Problem :
My Pro Tools 12.8.3 Installer crashes during install when the plugins try to load up 
All seems to go well loading almost all of my plugins, but crashes when trying to load ,
- one of my soft tube compressor plugins,
- UVI workstation .
Just before the installer crashes : An AVID error message window pops up comes up telling me I need to contact the developers of those Plugins (ie; UVI & Softube) ?
I know there is nothing wrong with both these latest version plugins, nor are they corrupted ..,
as they were both worked fine in the previous Pro tools version 12.8.2
I do also feel I shouldn't be need to contact the developers (ie; support) of these UVI & Softube plugins - as it sounds to me like the problem lies with Pro Tools 12.8.3 ?
NOTE : I even moved those two plugins to the unused plugin folder , and after doing so - even further attemps to install pro-Tools 12.8.3 I still keep having their installer crash time and time again
Is anyone else seeing this install problem or have any recommendations ?