My email filters are not working in iOS 18

After updating to iOS 18, the mail app filters (flagged emails and unread emails filters) no longer work properly, if you have more than 9 email accounts.

If you have more than 9 email accounts and choose to activate any -or both- of those filters, your aggregate inbox (where you see all the inboxes of all your email accounts combined into one inbox) shows up as empty regardless of having unread and/or flagged emails, those will no longer show up at all. In my case there are 100s of flagged emails in all my

inboxes and several unread as well, but none of those appear as soon as you activate the email filters. So the only way to see unread and/or flagged emails after updating to iOS 18 is to have the flagged and unread email filters de activated.

[Edited by Moderator]