Launcher 20.3.6: Engine Versions empty, Install Engine and + do nothing

Summary

Epic Games Launcher 20.3.6 on Windows 11 shows an empty Engine Versions list. Clicking Install Engine or the + button does nothing, preventing Unreal Engine installation.

What Type of Bug are you experiencing?

Other

Steps to Reproduce

  1. Open Epic Games Launcher 20.3.6 on Windows 11.
  2. Sign in to an Epic Games account.
  3. Select Unreal Engine, then open the Library tab.
  4. Click Install Engine.
  5. Click the + button beside Engine Versions.
  6. Observe that no engine version tile, license dialog or installation window appears. The engine list remains empty.

Expected Result

Clicking Install Engine or the + button should display an available Unreal Engine version and allow me to proceed with the license agreement and installation.

Observed Result

The Engine Versions list remains completely empty. Clicking Install Engine or the + button does not open an engine version tile, license agreement or installation window. No download starts and no error message appears. Signing in and accessing the Store work normally.

Affects Versions

5.8

Platform(s)

Windows

For crash reports, include your callstack

Not applicable. The launcher does not crash; the installation buttons do nothing.

Additional Notes

Epic Games Launcher version: 20.3.6
Operating system: Windows 11
Unreal Engine is not installed. If version 5.8 is selected above, it is the intended installation target.

Already tried without success:

  • Fully exiting and restarting the launcher.
  • Signing out and signing back in.
  • Updating the launcher.
  • Clearing its web cache.
  • Uninstalling and reinstalling using the official installer.
  • Testing a different connection through a phone hotspot.

Approximately 299 GB is available on the intended installation drive.

Relevant log excerpts:
EoshState = WaitingForBuildsAndItemFiles
LoadItemFiles: Loaded 0 item files in 0.0 secs
EoshState = Enabled
LogCommunityPortalOSS: …found 0 entitled apps

These log lines are observations, not a confirmed diagnosis.

Epic Player Support directed me to this portal for investigation of Unreal Engine access, entitlement and catalog synchronization. Please advise how to restore access to engine versions and installation.