For a couple different files, I got an error message in the Preflight panel, indicating the presence of Overset text, but NO page number. In both files, it said it was an issue with footnotes, but not where. One of the suggested fixes is to allow Split Footnotes, but that option is already checked.
After a lot of sleuthing, we eventually found the error. In one of the two files there were multiple errors in multiple locations. The entire footnote had vanished. The footnote reference was still there, but all of the text of the note had disappeared.
As you can see, I had previously lengthened the page to make room for the footnote text at the bottom of the page. But then the program decided, nope, not enough room for that after all, and made the entire footnote disappear.
When I lengthened the page by 0p1, Poof! the footnote text magically reappeared. If I shortened it by that 0p1 again, the footnote text stayed in place.
1. Why does it suddenly decide the page is too short, when it was not too short before or after that time?
2. Why has the Preflight panel gotten less smart than it used to be and can no longer identify the location of the error?
I upgraded to version 16.0 and got the same results.
Windows PC, 64-bit, shown here is 15.1.2, but as noted, after I upgraded to version 16.0, the Preflight panel didn't get any smarter.