Github user doanduyhai commented on the issue: https://github.com/apache/zeppelin/pull/1369 @astroshim @AhyoungRyu Ok I've found the issue, it's my bad: ```javascript for (var setting = 0; setting < $scope.interpreterSettings.length; setting++) { var setting = $scope.interpreterSettings[setting]; if (setting.status === 'DOWNLOADING_DEPENDENCIES') { isDownloading = true; } else if (setting.status === 'ERROR') { ngToast.danger({content: 'Error setting properties for interpreter \'' + setting.group + '.' + setting.name + '\': ' + setting.errorReason, verticalPosition: 'top', dismissOnTimeout: false}); } } ``` I'm using the variable `setting` as an index for the iteration of the for loop as well as the variable for the setting object itself, which breaks awfully the for loop. Now it's fixed, see below 
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