I have four 0 byte files for that tweet, and the replies seem to suggest that, at one point, the embedded files were working. This could be a temporary outage of one of Twitter's CDN servers.
It would be good to discard those files so the program could possibly redownload valid ones at a later date. There should probably also be something printed in the console, maybe even an error log.
Notice how this tweet's media is all blank (as of submitting this issue, at least): https://twitter.com/alcopopstar/status/1288270106032660480
I have four 0 byte files for that tweet, and the replies seem to suggest that, at one point, the embedded files were working. This could be a temporary outage of one of Twitter's CDN servers.
It would be good to discard those files so the program could possibly redownload valid ones at a later date. There should probably also be something printed in the console, maybe even an error log.