Fikrul Arif, if this still affects you, could you please report upstream as requested in https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1159835/comments/2 ?
Reproducible as per Bug Description in: Version: 6.3.2.2 (x64) Build ID: 98b30e735bda24bc04ab42594c85f7fd8be07b9c ** Changed in: libreoffice (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1159835 Title: Index entry for Table of Contents (TOC) level 10 backs to level 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1159835/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs