Fails to preview dot files despite them being extension-less text files

[KernelBypass]

This plugin aims to preview plain text files without a file extension:

...The application can also handle some [plain files](https://github.com/sbarex/SourceCodeSyntaxHighlight/issues/new#plain-files) without extension...

Expected behavior:
Should be able to preview dot files like .gitignore because that's literally what they are - plain text, no file extension.

Actual behavior:
No preview gets displayed.

Thanks

[KernelBypass]

Issue went away after restart. Strangely, all other special source files were preview'able before the restart.