Hal, messaged you yesterday about the slight inconsistent nature of downloads, sometimes it worked, sometimes it didn't, like the example where 107 files were downloaded by v1.9 and 108 by v1.7.
Not sure if you could possibly look at parsing the threads possibly twice, just to make sure images are definitely downloaded. It may have been a server issue on their end the first time it attempted to download it, but given time from not accessing the page and possibly on the second pass it may grab an image it failed to download the first time?
I don't know how workable this is, because I assume you create the .xxxxxx file to say you've attempted to download the image from that page, and I'm sorry I don't have concrete evidence to help pinpoint the issue.
It could just be pot luck whether it gets the image first time or not
It's a flipping really great tool. You have my highest level of respect here for your time and patience. I'm running it on 4 or 5 threads at a time, could that be an issue?
Cheers.