I can't delete a keyword plus Lightroom now automatically displays keyword folders

Question

Lightroom has suddenly started behaving oddly with regard to keywords and I can't seem to find reference to it anywhere, even if it is "switch" that I have accidentally turned on.
In my set up, I have, for example, the keyword "Portrait" stored under a keyword folder "Photographic styles".  Normally only the word "Portrait" appears within the keyword box and that's how I want it, but recently whichever keyword I type, the containing folder pops up alongside it.  Note, this isn't during an export of a file, this is actually whilst keyboarding a photograph with the Library section of LR.
Secondly, I can no longer delete a keyword by highlighting it with the keyword box in Library so, unless that word is still within the Recently Used collection of words where I can can un-highlight it, I can't remove a highlight from a photograph at all.
Have I changed a setting by mistake or is there something market going on?
Many thanks in advance for your help,
Martin

Answer 1

Normally only the word "Portrait" appears within the keyword box and that's how I want it, but recently whichever keyword I type, the containing folder pops up alongside it.  Note, this isn't during an export of a file, this is actually whilst keyboarding a photograph with the Library section of LR.
It sounds like you created a top-level keyword "Portrait", so now you have two top-level keywords, "Portrait" and "Photographic styles", and you also have a child keyword "Photographic styles > Portrait".  (Note that the usual terminology is to call "Photographic sytles" a parent keyword, rather than a folder, since it is also a keyword.)
When your Keyword List has more than one keyword whose leaf names are the same, then LR will include the parent name of the child keyword to remove ambiguity:
To replace the top-level keyword "Portrait" by the child keyword "Photographic styles > Portrait", follow these steps:
1. In the Keyword List panel, hover the mouse on the right edge of the line containing the top-level keyword Portrait, until you see a right arrow appear:
Click on that right arrow, and all the pics containing the top-level "Portrait" will be shown in grid view.
2. Select all those pics by doing Cmd-A (Mac) or Ctrl-A (Windows).
3. In the Keyword List panel, hover the mouse over the left edge of the line containing the child keyword "Photographic styles > Portrait".  A check box will appear:
Click on the check box and a checkmark will appear, indicating the child keyword is now assigned to all the selected photos.
4. In the Keyword List, right-click the top-level keyword "Portrait" and select Delete: