Dreame starts cleaning without a schedule

My Dreame starts cleaning every evening at 6pm, despite there being no scheduled task at that time. I do have a cleaning schedule in the mornings at 8am; however nothing at 6pm. I have checked settings in the app and can find nothing that might be causing this. Can you point me to what I am missing? Thank you.

Have you tried setting up a 6pm activity and then deleting it?

Good idea. I will try that. Thank you!

I cannot find how to set up automatic routine cleaning. Where do find out how to do it? I have a D50.

Setting a 6pm activity and deleting it did not stop it. I have removed all scheduled cleaning and it now is cleaning whenever it pleases. Perhaps that is intended with the AI mode? Maybe it is getting to know our patterns and deciding when it needs to clean? These things are not clear to me.