Recovering deleted To-Do task - How?

Benedikt Scheerer Allison_Smith123 ereissman Jonathanfmac myanalytics2019 

I found the deleted Tasks/list if I export all the To Do's from Outlook.com

https://microsoft-todo.helpshift.com/a/microsoft-to-do/?p=web&s=setup&f=exporting-your-microsoft-to-do-account

https://outlook.live.com/mail/0/options/general/export

After 2-4 days:-

OR

After copying the missing Tasks/list to Tasks in my POP-connected O365 account in Outlook (desktop app), the restored Tasks/list still doesn’t reappear in MS To Do!!! AGH!