Steps to reproduce, from emacs -q: 1. (setq org-imenu-depth 10)
2. Create the following document: #+begin_src org #+TITLE: Test * Level 1 ** Level 2 *** Level 3 **** Level 4 ******** Level 8 #+end_src Notice the break on the structure: levels 5, 6 and 7 are missing. 3. M-x imenu, select each Level n entry 4. imenu will crash after you've selected Level 4 I can reproduce this from emacs -q using org-mode from git master (842002f9f7e3246cc285cc9bca1adb715120438d). I'm running 26.1 on NixOS. (I didn't include the detailed system report since I've tested on multiple setups, including -q. Please ask if you need any extra information) Thanks Thibault
