The Sublime Text toggle comment feature (turn line into comment) does not work when the cursor is on Ruby code. The line is then commented out with a # character, while it should be commented out using a / character. Commenting it out with a # character does not work.
The following example goes wrong:
====> 
While the following example goes right (look at the position of the cursor):
====> 
As well as the following:
====> 
I am using Sublime Text 3 build 3126 with Ruby Slim v2016.06.25.06.05.06.