How to create a Cleanup After Maintenance Task in SQL Server 2016?

Question

Backup

only a backup of the database is made, so I created a cleaning task, but nothing is deleted. what is the reason? help
Backup in the task, several databases are made,
and for the cleaning task, I specified the shared folder where the bak files of the database are stored .
earlier in 2012 SQL created and everything worked.
who has any ideas)
And here are the logs of a specific task

Answer 1

Here are the most recent service packs and cumulat...
Don't forget which accounts run the server and its agent. Folder permissions.
Judging by the picture, your files are located in a subfolder, and you should not check the box to look for subfolders.

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