Issues

To prevent a possible Cubase Pro license installed on your Mac from causing VR issues, do this:

Rename the VR.lic file to serato_hex_fx_1.lic and the problem will be solved.

Other issues:

Terminal Code Permissions:

NAME="Serato Hex FX"
AU="/Library/Audio/Plug-Ins/Components/"$NAME".component"
VST3="/Library/Audio/Plug-Ins/VST3/"$NAME".vst3"
{ sudo xattr -cr "$VST3" && sudo codesign --force --deep --sign - "$VST3"; } || true
{ sudo xattr -cr "$AU" && sudo codesign --force --deep --sign - "$AU"; } || true

Another Solution:

1. navigate to your plugins folder, find "serato hex fx". there is one file in components and one file in vst3 so you'll have to do it for each

In Terminal add this

sudo xattr -cr

then drag the file in terminal (it will write the path in terminal) press enter and put your password.
repeat with this:

sudo xattr -r -d com.apple.quarantine

and this:
sudo codesign --force --deep --sign -

it is very important to have that space at the end of each command. example;

sudo xattr -cr "/Library/Audio/Plug-Ins/VST3/Serato Hex FX.vst3"
sudo xattr -cr(SPACE)"/Library/Audio/Plug-Ins/VST3/Serato Hex FX.vst3"
sudo xattr -r -d com.apple.quarantine "/Library/Audio/Plug-Ins/VST3/Serato Hex FX.vst3"
sudo codesign --force --deep --sign - "/Library/Audio/Plug-Ins/VST3/Serato Hex FX.vst3"