Code auto complete window after adding comma

An example or a screenshot please?

<?php 

$a = [

      'one' => 'aaaa',   <---- after I put comma open auto-complete window 

      'b' => 'bbbb',     <---- after I put comma open auto-complete window

];    

Cannot reproduce it - what appears in the completion window?

What are the settings in Settings/Preferences | Editor | General | Code Completion?

Have the same problem. When I enter comma and enter, ide add code from autocomplete

Settings:

PhpStorm 2017.2.4
Mac OS X 10.12.6

>> Please check if you have anything mapped to the , shortcut at Preferences | Keymap | Find Actions by Shortcut.

There is no combinations with the «,» symbol.

Any custom plugins enabled? Please turn the all down if any and check how it goes afterward.

Thanks Eugene, the "Kite" plugin was causing this weird behavior.