Recently something has changed in the plugin update algorithm (at least in v1.4.3.0). It doesn't longer preserve sub-folders from the plugin packages and collapses all the files in the single root directory.

While the problem itself is simple it has very severe effect on plugins that do rely on file structure. Thus CS-Script plugin was completely broken because of this problem.

Test-case

• Do clean install of CS-Script (C# Intellisense) plugin.
  Ignore prompt to install plugin internal update that tries to provide a work around for this problem.
• Observe plugin flat file structure:
  

And this is the actual file structure of the plugin package: