All files in my Vault have become corrupted - text only appears as series of boxes

Hi I have been an avid Obsidian user for over a year until two weeks ago all my calendar notes I believe have become corrupted and now each daily note only appears as a “Box” -please see screenshot below- The calendar entries show up in the calendar correctly but the data on each note is showen as a “box”.

Steps carried out to fix corrupted notes:
Vault located in local Documents folder & no synchronisation service (Dropbox etc) being used.
Checked for updates on both Core & Community plugins - no effect
Ran Obsidian in Restricted mode - no effect
Uninstalled and re-installed Obsidian - no effect
Copied Vault to another Pc and installed Obsidian - no effect
Loaded previous snapshots and all notes still appearing as corrupted boxes - no effect
Opened Vault in Sandbox mode - no effect
Reloaded CSS snippets in the Appearance menu- no effect
Able to create new Calendar Daily notes without issue only the entire notes are corrupted
Settings > Appearance > changed from default - no effect

Environment

SYSTEM INFO:
Obsidian version: v1.3.5
Installer version: v1.3.4
Operating system: Windows 10 Enterprise 10.0.19044
Login status: not logged in
Insider build toggle: off
Live preview: on
Legacy editor: off
Base theme: dark
Community theme: none
Snippets enabled: 0
Restricted mode: off
Plugins installed: 4
Plugins enabled: 1
1: Calendar v1.5.10

Community plugins:
CaLendar
cMenu
Outliner
Templater

I would very much appreciate any help available- if this is a Windows 10 issue causing this corruption of my Obsidian files is there any app that anyone could recommend to fix this issue.

Additional information

I don’t remember the details but if you search the forum for prior discussions of this you will find find info (and solutions if I remember right).

Now is also a good time to learn about the File Recovery feature and to check if your backups are up to date (if you don’t do backups, now is the best time to start).

It seems as if Obsidian is unable to render your font type.

Something happened with your fonts. Did you install new fonts, or did you modify obsidians font settings?
Maybe check incompatibility of plugins too and update your plugins if possible

Hi Jopp,

Thank you very much for your reply much appreciated - unfortunately I haven’t been able to resolve the issue of the font being unable to render in Obsidian-

I did not update or change the font on my Windows 10pc or in Obsidian so not sure why this non-rendering of the font in Obsidian should be happening.

To resolve the issue I have with the font not rendering in Obsidian I have carried out these additional steps:

  1. Uninstalled the Calendar plug-in but no effect
  2. Turned on CSS Snippets and saved them in my Vault
  3. Created a .css file with the code
    body {
    font-family: ‘Arial’, sans-serif;
  4. Switched off and uninstalled all Community plugins - no effect
    }
  5. Installed 10 Community Themes but none of them were able to render.
  6. New notes are rendering perfectly - it is only the notes before the 12/07/23 that I cannot read

Would you please advise on any other steps I may be resolve this issue.

Try to navigate to your markdown note on hard disk / sdd with your file manager.

  • Open it with your preferred markdown editor
  • Alternatively, rename your note with this suffix: “.txt” and open it with any simple text editor

Can you read your note now?

Or, did you encrypt your note with an Obsidian plugin called Meld encrypt and forgot you applied an encryption ? If so and if you have still your password at hand, have Meld encrypt activated, then unlock your note

Finally,

  • check Preferences> File recovery to restore your particular file from a previous backup
  • Alternatively, restore your notes from your recent computer backups
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