Defender is not blocking IP permanently.

Notice that I have enabled permanent lockout when more than 8 404 hits. However, when that happens, it only puts a timeframe of 300s. In the past, it worked fine. But now, all my websites on which I have installed Defender Pro have the same behavior.

https://cdn.livechat-static.com/api/file/v2/lc/att-old/8801096/330879ee5109ae9a25c4145bec2ecf3c/Screen%20Shot%202019-11-07%20at%208.43.45%20PM.png
https://cdn.livechat-static.com/api/file/v2/lc/att-old/8801096/20b97ff5ff57179ab7ad0f20b1cd22fe/IMG_5650.PNG

Please check and help.