Might be. The snap package handles udev rules (required for device access) that might cause issues when adding new devices. Could you check if another installer package, AppImage for example, sees the device?
Thanks - but is there a way to retrieve those instructions? Someplace where they might be archived? We do have an issue with the installer - well, we don't know for sure what is going on... - but a step by step installation might prove useful to find out why and when the installer isn't working correctly in that particular case.