compile - "irnatural" appearing after line break in footnotes

Hi - I sometimes need to use multi-paragraph footnotes. Recently, the stray word “irnatural” appears after every line break in a footnote. I’ve fiddled with various settings but can’t get it to go away without manual deletions in the compiled Word doc. ( I can’t remember whether this predates the 3.0 release, though I believe it does.)

Any advice on how to make this stop? I’ve searched for “irnatural” on the forum without luck, so I believe this Q hasn’t been asked/answered yet. Many thanks!

Same issue