Hello,
in the last screenshot, you did not place the checkmark:
X Unattended File Deletion Allowed
In addition, please note that the limits of 20% and 1000 can also cause deletions to be disabled if there are too many files to delete. That means if you make an artificial test with only 20 files and you delete half of them, Syncovery won't do it because it's over 20% (unless you change the percentage).