Access log IP’s belong to Microsoft Corporation, but not verified Bingbot as per Bing Webmaster tools?

When I checking the search engine bots access logs on my VPS, I can see that there are several bing bot logs, but when I use the Verify Bingbot tool (on Bing Webmaster Tools), it shows these IP’s does NOT belong to Bingbot. Then I use whois lookup search and it shows these IPs belong to Microsoft Corporation.

What could be the reason? Is it a fake bot? If so, why it adds a "bingbot/2.0" phrase to access log and these IP’s own Microsoft Corporation?

These are the few controversial IPs.

52.246.254.242 52.247.216.61 52.250.54.21 

Access log.

52.246.254.242 – – [25/Oct/2020:02:34:48 +0530] "GET /2019/08/install-sony-update.html/amp HTTP/1.1" 301 5 "-" "Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)

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