I noticed a specific flash thread wasn't recorded on swfchan -- https://boards.4chan.org/f/thread/3496229/ posted the very old lupin.swf which I remembered pulling from an ancient japanese site that was archived in the wayback machine and I wanted to check if it was the same flash or a variation. When I did a search for http://eye.swfchan.com/search/?q=lupin.swf that flash didn't have the newest thread for some reason, despite it being up for about 2 days.
Hopefully it's an easy fix to find out why it is showing up as missing!
>>97015 I'm not sure what's wrong, the code is so old now but my best guess is that either it's because of the server losing internet connection and failing to try to download again for some reason, or the thread and flash is downloaded and stored successfully but the html files aren't generated and appended to the "wiki" page for whatever reason. I would need more examples to investigate and also notice them before they 404 on /f/ (in addition to have the ability to work on the problem on that day).