I wanted to create a new .less file with PhpStorm named content.less, but I forgot the file type, so I just typed "content". The file had no type and I noticed my error, so I deleted it. Then I created a new file named "content.less" but PhpStorm still doesn't recognize the file type. Even deleting the file and creating it again doesn't make PhpStorm recognize it correctly as .less file. I even created a .txt file with Windows and renamed it to "content.less" but PhpStorm refused to recognize the file as .less file. All other files work as they should.
(I disabled file endings in tabs, thats why there is no ending shown)