Rails loads wrong files

Mike Just wrote:

2) The Editor saves backup files from the last version of the file with
extension .bak, like (xxx.html.erb.bak):

I have no idea why Rails is trying to use your backup files. Maybe it
sees the "html.erb" and ignores the rest of the file name. That being
said, if I had an editor that left trash backup files around in my
project folder I would immediately look for a option to turn that
"feature" off. If the editor didn't have such an option, I would find
another editor. Those backup files are completely unnecessary if you're
using a version control system. And, if you're not using a version
control system then your should be.