Hi, the topic explains it. The export button is greyed out with a message I cannot figure out, see the screenshot here.
I copied the files to the usual location as per below ...
Pluraleyes ...
Copy the file "PE4Vegas14.dll" which is in the folder .. C:\Program files\Red Giant\Pluraleyes 4\
then paste it to ... C:\ProgramData\Vegas Pro\Application Extensions\
or ... "PE4VegasLoader14.dll" rather than "PE4Vegas14.dll"