OpenUI5 version: 1.73
Browser/version (+device/version): Chrome/79.0.3945.8, Edge/44.18362.449.0
URL (minimal example if possible): https://openui5nightly.hana.ondemand.com/#/topic
Steps to reproduce the problem:
What is the expected result?
Documentation content:

What happens instead?
芦No data, please try with the global search禄 error message:

Thank you for pointing this out.
It seems that the technical structure of the internal documentation delivery has changed in an incompatible way. The build of the SDK needs to be adapted to this change.
Should be fixed now.
@codeworrior, the change log page for the 1.73 is empty. Is it a bug or it should be that way?

AFAIK, the changelog files are only created / updated around the release date. See e.g. https://github.com/SAP/openui5/commits/master/src/sap.m/test/sap/m/relnotes/changes-1.72.json.
And there seem to be no 1.73 files yet.
@codeworrior now also broken for 1.72.0 on the regular release channels:
https://ui5.sap.com/1.72.0/#/topic
https://openui5.hana.ondemand.com/1.72.0/#/topic
We know :-(
Fix is already on its way...
Finally fixed with 1.72.1: