It sounds like the error message is just a warning, and since your quiz is still working fine with random questions, the issue might be related to the system not fully recognizing that the randomization feature is active. You could try disabling and then re-enabling the “Are the questions random?” option to refresh the settings.
This actually reminds me of when I was trying to run PlayStation 2 games on my PC. I ran into all sorts of issues until I figured out how to use an emulator like AetherSX2, and the key was downloading the PS2 Bios for smooth gameplay. Sometimes, it’s just about tweaking settings until everything works seamlessly!