After plugin update the pluginfolder is renamed

Question

When updating a Wordpress plugin, which is hosted outside the wp-repository, the plugin folder gets renamed and 6 characters are added. For example "ma-favorite-plugin" is renamed to "my-favorite-plugin-wD7aLW".

Why does this happen?

Answer 1

This happened to me when the structure of my zip file was like that:

my-plugin.php
/includes
  file1.php
  file2.php

The root directory should be included in the zip file, and then everything works fine.

/my-plugin
  my-plugin.php
  /includes
    file1.php
    file2.php