Hi @danhz you’re not alone – this is a source of confusion for many people using the platform. I’ll suggest to the core committer team that fixing this would make a great contribution for future releases. But in the meantime…
Can you post the relevant fields from your current configuration so we can see if there’s something that you may have missed?
If you don’t want to run Course Discovery, have you disabled the course discovery plugin on Tutor?
If you do want to run Course Discovery, then this thread might be useful: Request for feedbak: breaking changes for course visibility - #3 by kmccormick