Since this morning's 2.4.0 deploy, invoice uploads larger than 2 MB are rejected with HTTP 413.
Finance teams started reporting failed invoice uploads at 09:10, right after 2.4.0 went out.
Small PDFs still work; anything above 2 MB comes back 413 Request Entity Too Large.
The release smoke test in /home/user/invoice-api fails on main.
The new request timing middleware is the first suspect in the channel.
The fix is yours to find: hints, the recovery checks and the debrief unlock inside the incident.
The alert fires and the clock starts. Read the page and the briefing.
Work in a simulated shell with realistic output: logs, configs, services.
Change the system the way you would in production. Hints are there if you get stuck.
Automated checks verify the recovery, then the debrief explains what happened.
Free, instant, and it works on your phone. No signup: start as a guest and save your progress later.