SanDisk v3.0 can’t be installed on this disk

I’m trying to install SanDisk SecureAccess onto a 2019 MacBook Pro running macOS 11.2.3 (Big Sur). I’ve downloaded the 3.02 installation file for macOS, double clicked to run, pressed continue and immediately get the message “SanDisk v3.0 can’t be installed on this disk”. I get pictures of two disks, one showing ‘Macintosh HD’ and the other the SanDisk USB. Both have an exclamation mark in a yellow triangle and will not allow an installation. I’ve seen previous comments from 2017 saying renaming the drive might help but that did not work for me. Anyone else got this with the latest version of macOS?

Okay, I’ve downloaded the installer again and now it works!