Export to PDF loses some math text

Bug reports
,
1

When I export a longer document to PDF, sometimes some math symbols and text are omitted.

I speculate that this has something to do with the specific characters not being loaded at export time. It is reproducible on a clean start. However, if I have scrolled through the document, export works fine.

Steps to reproduce

Create file including math elements that is multiple pages.
Restart Obsidian.
Open the math file.
Without scrolling to look at the content, export to PDF.

Math elements later in the document may be blank.

Important: if I scroll through the document first, the export is fine.

Did you read and follow the Troubleshooting Guide ? [Yes/No]

Yes.

Expected result

3082
3082852×240 9.7 KB

Actual result

94992
94992802×242 4.82 KB

Environment

SYSTEM INFO:
Obsidian version: 1.13.7
Installer version: 1.13.4
Operating system: Darwin Kernel Version 24.6.0: Tue Jul 21 20:51:05 PDT 2026; root:xnu-11417.140.69.711.44~1/RELEASE_ARM64_T6000 24.6.0
Login status: logged in
Language: en-GB
Catalyst license: insider
Insider build toggle: on
Live preview: on
Base theme: adapt to system
Community theme: none
Snippets enabled: 0
Restricted mode: on

RECOMMENDATIONS:
none

Additional information

Here is a gist to the exact file I am using to reproduce this issue:

https://gist.github.com/playerofgames/c8cd58ff491868d3fd194b5d82555bb0

The screenshots are showing the export error from the end of the document.

2

I can’t reproduce this problem. Try to open the PDF with as different PDF reader.

3

Thanks for looking at this problem.

To make sure there wasn’t something about my environment, I created a new user account on macOS, then launched Obsidian and created the export test file from the gist.

I restarted Obsidian and immediately did an export. Then I scrolled to the bottom of the file and exported again. The problem was reproduced, and the PDFs have different sizes, 44,038 and 52,646 bytes respectfully.

So this is not a PDF viewer problem. If it is an environment problem, it must be global to my Mac, but I’m unsure what could cause that (I don’t install fonts in /Library/Fonts, for example).

I’m happy to provide the PDF files generated if that would help.