Cannot debug it, but when org-fill-paragraph is called on a paragraph with no final newline. Top:
Debugger entered--Lisp error: (args-out-of-range 1179 1263) buffer-substring-no-properties(1179 1263) (replace-regexp-in-string " " (make-string tab-width 32) (buffer-substring-no-properties (point) end)) Thanks. Samuel -- The Kafka Pandemic: http://thekafkapandemic.blogspot.com