Issues with calendar and sorting

This will show that the calendar is not functioning properly in tasks.
Also, why doesn’t my day revert to the previous list instead of making you start from the beginning.

There isn’t much anyone can do in this forum if you believe there is something that isn’t functioning correctly. This forum generally is set to assist in giving instruction and/or ideas of ways to preform given tasks but is not a “fix this broken piece” action. You’ll need to submit a ticket to Keap support via phone or chat to get a corrective course of action to fix something that’s not working.