Mirrors incorrectly reported as having a file

Summary

I just completed a release for LSP4J and this URL - https://www.eclipse.org/downloads/download.php?file=/lsp4j/updates/releases/0.21.0/v0.21.0.zip - is reporting back within a couple of minutes of having uploaded the zip file as having multiple mirrors.

However the mirrors all report 404 when I click on them:

I have never observed this behaviour from the mirror tool before.

In the past, sometimes immediately after uploading a file the mirror tool had issue #691

Steps to reproduce

Go to https://www.eclipse.org/downloads/download.php?file=/lsp4j/updates/releases/0.21.0/v0.21.0.zip and click on downlad

What is the current bug behavior?

Get a 404 from all mirrors except "Canada - Main eclipse.org downloads area"

What is the expected correct behavior?

Serve only mirrors that have the file

Relevant logs and/or screenshots

Priority

Urgent
High
Medium
Low

Severity

Blocker
Major
Normal
Low

Impact

Files can't be downloaded. I assume that the mirror of p2 repos will report same error which will lead to errors installing in Eclipse, but I haven't tried that.

As for severity, if it is a short time, then feel free to lower it. But as of now it has been > 5 minutes and it is still reporting wrong.