Troubleshooting Custom Icon Deletion When Adding New Extensions Custom File Type

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Troubleshooting Custom File Type Launchers and Icon Overrides in MC: Icon Deletion When Adding New Extensions

I'm configuring a custom file launch setup in MC for handling various PDF-related formats. The current File Types setup includes: `*.pdf`, `*.epub`, `*.djvu`, `*.mobi`, `*.chm`, `*.FB2`, `*.CB7`, `*.CBR`, `*.CBT`, `*.CBZ`, `*.PRC`.

The launcher configuration in `FileTypes.xml` looks like this:

xml

Code: [Select]

<launcher name="Sumatra Sandbox">
  <program type="1" name="" path="C:\Users\dell\Documents\SumatraALLOld\SumatraPDF-3.2-64.exe" args="-invert-colors &quot;${filepath}&quot;"/>
  <icon use="0" path="" index="-1"/>
  <extensions>*.pdf *.epub *.djvu *.mobi *.chm *.FB2 *.CB7 *.CBR *.CBT *.CBZ *.PRC</extensions>
</launcher>

I added a new file extension `*.azw3` to the `<extensions>` list. However, doing so causes my custom icons defined in `IconOverride.xml` for `.pdf`, `.epub`, and `.mobi` to be deleted automatically.

Icon override configuration:

xml

Code: [Select]

<icon ext=".pdf" iconpath="D:\Download\PDFX_Vwr_Port\PDFXCview.exe" iconindex="0"/>
<icon ext=".epub" iconpath="D:\Download\PDFX_Vwr_Port\PDFXCview.exe" iconindex="0"/>
<icon ext=".mobi" iconpath="D:\Download\PDFX_Vwr_Port\PDFXCview.exe" iconindex="0"/>

**Issue:** 
Adding a new extension to the launcher `<extensions>` list appears to overwrite or remove existing custom icon overrides for certain file types, specifically `.pdf`, `.epub`, and `.mobi`. How can I add support for `.azw3` without disrupting my existing icon customizations? 

**Seeking:** 

• Best practices for expanding file associations in MC without invalidating custom icon settings.
• Configuration adjustments or workaround recommendations to preserve icon overrides when modifying launcher extensions.

P.S: I did all this via the user interface.