InDesign does not import any of Word's own Footnote settings. If these lines show up in InDesign, you can switch them off.
There are tons of ways to create lines above a footnote, but most of them are manual -- and I don't suppose they would end up after a plain import. Manual ways are: a line drawn with the Pen tool; lots of --------; an overstrike or underline that has been coaxed higher than their usual position; a table with all cell strokes except the top one off.
There is usually no need for such trickery, InDesign has a perfectly good Paragraph Rules Above option, which does the same job. And Paragraph Rules *do* get imported from Word.
Then again, even Paragraph Rules are in not necessary for footnotes, since they have their own rules. You already mentioned you switched them off in both the 'notes own style AND in the Footnote Options. What happens to the rule when you assign a random other style to a note? What happens to it when you insert a new note on a page which does not have one?
It seems that I can fix it if I repeatedly refresh both of the footnote rule options--switching them back and forth. Maybe MS Word importing is not to blame?
Okay, sorry--I see you know where to look.
What do you mean with "switching back and forth"? You know there are two separate rule settings? Merely "switching" the options don't change a thing, you have to disable the rule in *both* settings.
Thanks Jongware, I think I was posting the same time you were. It seems I was wrong to assume the problem was with the import, like you said. I have been able to remove them in this document by resetting the footnote rule options back and forth a few times, which seems to sort of refresh the document and get rid of them all (they were never consistent). Here's hoping that continues to work with the next one! I'll update when I get there.
By switching back and forth, I mean turning both on then turning them back off.
Adding to the confusion, sometimes ID spontaneously forgets the settings for line over footnote and/or continued footnote. The usual cure is to force a refresh by toggling the setting. I try to remember to do this before my last save, but eagle-eyed proofers have caught my mistakes.