I've the plugin 'Redirectify' installed into 'mu-plugins' folder a few days ago and got it working. Today the plugin is missing from Plugin Management page. I've checked the FTP, and the file still exists.
Now I can't get any plugins listed if I upload them into 'mu-plugins' folder. WPMU only lists plugins in the 'plugins' folder.
I've tried renaming the plugin folder in 'mu-plugins' folder to see if it still works and it does! *puzzling*
How can I recover this plugin (get it listed in Plugin Management) again?
If I can't do that, I'll need to upload future plugins into 'plugins' folder instead of 'mu-plugins' folder. In that case, how can I activate plugins site-wide instead of per-blog basis?
Tq.