extension/ezwebin/design/ezwebin/override/templates/full/folder.tpl is already an override, you can not override an override using override.ini rules.
There are two choices: 1. placement override, override the above template in all conditions it is used (full view off all folder objects) by copying the template to your own design that has higher priority(see settings/siteaccess/*/site.ini Design settings) AND/OR same design name 'ezwebin' in your own extension that has higher priority(see setting/override/site.ini extension settings).
2. override.ini override, if you want just a specific node(or some other specific rule) to use another template then folder template, then add an override rule that looks like this:
Notice the Source, if you enable debug output and [TemplateSettings]ShowUsedTemplates=enabled (both in site.ini) it will be a lot easier to understand and debug.
