QuickLook.Plugin.TextViewer.config totally ignored

Describe the bug

• Whatever the content of UserData\QuickLook.Plugin.TextViewer.config in portable mode, no change.
• Any change in UserData\QuickLook.config does work, though.

To Reproduce For my test, this is the content of the config file:

<?xml version="1.0" encoding="utf-8"?>
<Settings>
  <FontFamily>Arial</FontFamily>
  <FontSize>30</FontSize>
</Settings>

Expected behavior On a pure .txt file, I expect to see very large fonts, in Arial. Instead, I can only see default monospace fonts, default sIze (likely 14).

Desktop (please complete the following information):

• OS Version: Windows 11 25H2 - 26200.8893
• QuickLook Version: 4.5.0 from .7z available on GitHub releases.

Screenshots and Exception Log