"see full documentation" link in the tooltip broken - language problem?

The Blueprint “see full documentation” link in the tooltip throws this link (see image):

https://docs.unrealengine.com/latest/DEU/Engine/Blueprints/UserGuide/Functions/index.html?utm_source=editor&utm_medium=docs&utm_campaign=rich_tooltips

which shows a 404. It seeming try to access a language specific version of the documentation and fails as it doesn’t exist.
All tooltip “see full documentation” links are affected
more examples:

https://docs.unrealengine.com/latest/DEU/Engine/Actors/StaticMeshActor/index.html?utm_source=editor&utm_medium=docs&utm_campaign=rich_tooltips
https://docs.unrealengine.com/latest/DEU/Engine/Rendering/LightingAndShadows/LightTypes/Point/index.html?utm_source=editor&utm_medium=docs&utm_campaign=rich_tooltips
https://docs.unrealengine.com/latest/DEU/Engine/Blueprints/UserGuide/Types/LevelBlueprint/index.html?utm_source=editor&utm_medium=docs&utm_campaign=rich_tooltips

in comparison with the working link (bold printed above link to lower link):
https://docs.unrealengine.com/en-us/Engine/Blueprints/UserGuide/Types/LevelBlueprint

If there is no language specific version of the documentation can you instead redirect to the english version?

Engine Version 4.20.3

The problem persists under version 4.21.1
Still getting a 404 when using F1 for the direct link to the documentation.