[Quiet Man Cometh]

Found the disappearing issue. Tried downloading the exe again and it turns out my Norton anitvirus has been deleting it because it's threatening somehow. Anti-virus can be picky so I'm not sure if there's an issue or not but that appears to be why my downloads are missing.

Checked the program history. It's listed the source site's reputation as "bad" so that's why it may be blocking my downloads. Pre-emptive strike by paranoid anti-virus.