Installer 2.3.17 fails

I have 2.3.16 beta installed and it tells me that there is a new release. I download from within 2.3.16, close 2.3.16 and try to install, but see this error:

<img width="405" height="220" alt="Image" src="https://github.com/user-attachments/assets/fbaff6b2-9ccf-4ed9-a4a8-2335dcd5833d" />