Link: https://texfaq.org/FAQ-footintab : explanatory
LaTeX headaches have no end. Footnote text in tables don't appear using \footnote. The footnote number appears where its placed in the table, but *no* number at the bottom of the page, nor its associated text. The text just disappears.
What worked: the footnotehyper package. It saves footnote texts in an environment and emits them at the end. Tabular usage might be...
\begin{savenotes}
\begin{tabular}
The footnotes appear after the enclosed environment ends, in this case after the table.
The simplest setup is supposedly the tablefootnote package. Maybe. Although it properly compiled and assigned a number, no footnote text was generated.
