Table of contents not displayed in epub documents

[Korb]

SumatraPDF version

• Version 3.5.2 x64

Describe the bug
Table of contents is not displayed. In PDF- and FB2-documents, the Tables of contents is displayed in the sidebar.

To Reproduce
Steps to reproduce the behavior:

1. Open the document* in the specified version of SumatraPDF.

• Google Drive, 1.2 MB

Expected behavior
The Table of contents should be displayed on the left.

Screenshots

[GitHubRulesOK]

Hmmm
Did work in versions 3.1/3.2/3.3. but not 3.4+

[Entony777]

Hi !

I have the same bug with some files in MOBI format.
There is an internal table of contents but it is not shown in 3.5.2 x64.
When I convert the book to EPUB format using Calibre - then the table of contents in the EPUB book in Sumatra appears.

Thanks.