Allow folders created within a Document set to inherit metadata
A folder created within a Document Set does not inherit the metadata from the Document Set, although any documents stored within that folder do.
However, with Quick Edit it is possible to add the metadata to such a folder. This metadata is not updated when the Document Set metadata is subsequently amended. This leads to inconsistent metadata within a Document Set even though the settings have been configured for it to be inherited.
Kevin Davison commented
Why would folders be excluded from metadata inheritance?
Martin Coupal commented
¸Totally agree. The library default column value will apply the default value on files & subfolders. Document set should do the same.