Ok, figured it out. This only happened in files with #+TODO: 20% 30% 40% 50% 80% 70% 90% 95%
as part of its to-do directive. After removing the percentage to-do steps, camelcase worked and it stopped complaining about "invalid format operation %%\". On 2 April 2018 at 12:21, Michael Maurer <maurer.mich...@gmail.com> wrote: > I've enabled org-wikinodes.el to get CamelCase wiki links. But > whenever I try to follow a link/camelcase word, I just get "invalid > format operation %%\". Although there is a headline by that name in > the current file. > I'm using org-mode 9.1.6 and Emacs 25.3.1 64-bit on Win7.