Php file uploaded correctly but not shown correctly in browser

my problem is the following:

I've written my own template, which generates a webpage from several php files. It was working correctly all the time, but since a few days, one file won't show changes in my browser. I've uploaded the file, but in the browser all changes don't appear. I've tried deleting the file and re-upload it, doesn't work. I've tried it in several browsers, all the same... In my localhost, everything works fine!

EDIT: If I rename the file, everything works fine, but if I rename It back, things are broken.

Hope anybody can help me!