Math Latex symbols not rendered/invisible at some zoom level

Steps to reproduce

  • write LaTeX with \overline like
    \frac{1}{T}\int_0^T{\overline{f\left( t \right) e^{-ik\omega t}}dt}
    or
    \overline{c_k}

Expected result

Every thing properly rendered, including overline:
Snipaste_2020-11-12_15-12-51

Actual result

The overline is rendered but in light gray, both for light and dark mode, which makes it hardly visible.
Snipaste_2020-11-12_15-21-16
Snipaste_2020-11-12_15-21-43

Environment

  • Operating system: Windows 10
  • Obsidian version: v0.9.11 (Installer version v0.8.12)

Additional information

  • custon CSS and Third-party plugin already disabled.

Sadly I also can’t find an alternative way to write this formular with conjugation. “\bar” has only width of 1 character.