second one:
msnbot-40-77-167-76.search.msn.com - - [08/Apr/2025:14:26:41 +0200] "GET /threads/
Threadurl.1338/
Picture-Name.jpg HTTP/1.1" 404 9505 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; +
http://www.bing.com/bingbot.htm) Chrome/116.0.1938.76 Safari/537.36" 796 14614
There are hundreds of those. The requested picture does exist (it is embedded in the thread) but as full size pictures are only accessible to logged in users the bot won't get the ful resolution pic. It would however have a different URL than the bot requested anyway - no idea where he got his from.