Hi Dave,
Thanks for your reply.
I have 2023 Pro running (not really eager to upgrade to 2024 due to reinstalling all plugins) on Windows 10.
The way I install plugins/extensions from Sketchucation is by downloading them (.rbz) from the website, then install using Extension Manager. I just find the website more friendly and informative than the Tool.
Guess I'll have to reinstall all of them anyway when I upgrade. sigh
Cheers,
Nick