When I update to the new changes that julia-emacs made, it seems to have broken the completion of stuff like subscript characters for me. E.g. typing \_1 and then hitting TAB no longer makes a subscript 1 character. Other stuff like superscripts and regular latex characters seem to mostly work.
This is without me using (define-key julia-mode-map (kbd "TAB") 'julia-latexsub-or-indent).
Unfortunately, I am also unable to revert to the old behaviour as it suggests in the README because of #222