I noticed this with <br> tags, which are the only HTML element I use frequently in Obsidian, on desktop and mobile. The <br> tag disappears when I’m typing in the line after the break tag.
I also saw some really…interesting…behavior when an internal link was inserted before the <br tag, an example of which I happened to capture in a Loom video demonstrating the bug! (The first time it happened, I’d inserted an internal link with an alias right before the <br> tag, and the link disappeared with it, but the link alias would pop up randomly where the next <br> tag was wherever I clicked. Couldn’t reproduce this in the sandbox, but might be useful info.)
This Loom captures the <br> tag disappearing as well as some wild behavior with an internal link: Testing HTML Tag Issues in Obsidian 🐞 | Loom
I’ve attached the .md test file from the sandbox vault.
HTML break tag testing.md (446 Bytes)
Here’s my sandbox vault environment:
SYSTEM INFO:
Obsidian version: v1.9.10
Installer version: v1.8.4
Operating system: Darwin Kernel Version 24.5.0: Tue Apr 22 19:54:49 PDT 2025; root:xnu-11417.121.6~2/RELEASE_ARM64_T6000 24.5.0
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: 0
Restricted mode: on
RECOMMENDATIONS:
none