Letter o between <> causes the header format stop working after those <o>

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Steps to reproduce

any note create some headers, any level

H 1

H 2

after those title in a next line enter . (less than character lowercase o greater than )
. update if I don’t put it on back ticks they are not visible for the bug description. the characters are <o>. I had to use backticks to show them here.

new header

it does not work as a header anymore
remove the and the new header works.

Did you follow the troubleshooting guide? [Y/N]

yes

Yes

Expected result

The header worked in all situation even after

Actual result

the header is treated as regular text, and the lowercase “o” turns red.

Environment

SYSTEM INFO:
Obsidian version: v1.7.7
Installer version: v1.4.13
Operating system: Darwin Kernel Version 24.2.0: Fri Dec 6 18:56:34 PST 2024; root:xnu-11215.61.5~2/RELEASE_ARM64_T6020 24.2.0
Login status: logged in
Language: en
Catalyst license: none
Insider build toggle: off
Live preview: on
Base theme: adapt to system
Community theme: none
Snippets enabled: 8
Restricted mode: off
Plugins installed: 48
Plugins enabled: 41
1: Advanced URI v1.40.1
2: Banners v1.3.3
3: Advanced Tables v0.21.0
4: Advanced Slides v1.20.0
5: Buttons v0.5.1
6: Checklist v2.2.13
7: Code Styler v1.1.7
8: Diagrams v1.5.0
9: Editor Syntax Highlight v0.1.3
10: Filename Heading Sync v1.9.1
11: Extract Highlights v0.0.18
12: Frontmatter Links v1.2.7
13: Admonition v10.3.2
14: Dataview v0.5.67
15: Excalidraw v2.7.2
16: Excel to Markdown Table v0.4.0
17: Highlightr v1.2.2
18: Homepage v4.0.7
19: Hotkeys++ v0.2.7
20: Hover Editor v0.11.21
21: Icon Shortcodes v0.9.7
22: Icons v0.3.0
23: Imgur v2.6.3
24: Local REST API v3.0.4
25: Markdown Attributes v1.2.2
26: Mermaid Tools v1.1.3
27: Meta Bind v1.2.5
28: Metadata Menu v0.8.7
29: Natural Language Dates v0.6.2
30: Note Refactor v1.8.2
31: Painter v1.1.0
32: Paste URL into selection v1.7.0
33: QuickAdd v1.11.5
34: Reminder v1.1.17
35: Search Everywhere v1.0.10
36: Snippet Downloader v2.0.1
37: Style Settings v1.0.9
38: Templater v2.9.1
39: Text Snippets v0.1.2
40: Vertical Tabs View v2.6.0
41: Emoji Toolbar v0.4.1

RECOMMENDATIONS:
Custom theme and snippets: for cosmetic issues, please first try updating your theme and disabling your snippets. If still not fixed, please try to make the issue happen in the Sandbox Vault or disable community theme and snippets.
Community plugins: for bugs, please first try updating all your plugins to latest. If still not fixed, please try to make the issue happen in the Sandbox Vault or disable community plugins.


Additional information

I disable all the plugins and continue the same behavior.
I put it on restricted mode same behavior.
I also used the sandbox and the same behavior

I also noticed the offending characters are not visible after I posted the bug in your site.
let me try put them with back ticks.
<o>

If you write something that Obsidian thinks is or may be an HTML tag, it needs to be properly closed for the Markdown formatting after it to work.

CleanShot 2024-12-25 at 11.08.20

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