So I noticed that in the wp-includes folder of one of my sites there are sub-folders named wp-includes and wp-content that i suspect should not be there. These contain the same sub-folders as the ordinary wp-includes and wp-content. I am thinking one of two things may have happened:
I have accidentally copied those folders there without noticing.
Some wordpress feature or plugin has put copies there for some reason. Here's my question: do you know of any plugin that would do that? A backup plugin like updraft or duplicator perhaps, or maybe Wordpress itself when I upgraded to a newer version? Am I safe to remove those directories?
I discovered it when attempting to use Duplicator and it failed (probably because my hosting service timed out because of too much data) and gave suggestions of files/directories to filter out from te backup process.