Excel not publishing OLE

Excel no longer publishes any OLE clipboard formats in build 16.0.19725.20078. Copying a cell and using Paste Special in Word/OneNote shows no “Paste Link” and no “Microsoft Excel Worksheet Object.” Only text/HTML/bitmap formats appear. This blocks creation of linked or embedded Excel objects.

Issue is fully reproducible: new workbook, enter value, copy, open Word → Paste Special. Expected: Paste Link + Excel object formats. Actual: missing.

Verified after full repair, reinstall, Safe Mode, new profile, add‑ins disabled. Excel→Excel copy works; Excel→external OLE formats do not. This appears to be a regression in the OLE clipboard publishing pipeline for this build family.