4.27 docs pages give "400 Bad Request" errors

Here/s another that would be nice to work.
https://docs.unrealengine.com/4.27/en-US/AnimatingObjects/Sequencer/HowTo/CustomBurnIns

THere’s a broken reference here Applying Burn Ins | Unreal Engine Documentation
and doing a google search for customburnin points to a missing document.