Hey Tony,
Nice to meet you - appreciate you and the team keeping Harpoon alive and relevant!
I've definitely applied the latest updates successfully to the one location.
Even straight out of a fresh install using the installer from Matrixgames (and update) I get that battleset error so it's not related to the beta's.
Think it was why I put it back on the shelf as I couldn't resolve the error and not much luck trying to find a resolution for it.
Cheers