Hi @glen,
this is very strange indeed, can you send me your audirvana.dmp and audirvana.log file at support@audirvana.com?
It can be in two different locations :
C:\Users[your login]\AppData\Local\Packages\Audirvana.Audirvana-[… id number that can vary]\LocalCache\Local\Audirvana\Audirvana
C:\Users[your login]\AppData\Local\Audirvana\Audirvana
to show AppData folder: