There was a problem with downloading competitions with a large number of entries, it has been a problem for me for a while, but it finally happened to another club so I fixed it. The issue was that I was using Cloudflare as a reverse proxy which means all of the traffic went through them and they issued the https certificate. The free account (which I use) has a fixed request timeout of two minutes, so any download which took longer than that failed. The site no longer uses Cloudflare as a reverse proxy, you now connect directly and I get https certificates from letsencrypt. If everything breaks in 90 days time then I've got the renewal wrong!
When entering the author in the image metadata was checked against the name of the author uploading the image. This was a hangover from the way Storrington used to work. That check is no longer performed so the 'Fix It' button should see a lot less use.