New role user unable to update product

[deep1086]

We are using Magento 2.0.6 version. We are creating new role and user for new role in admin. When administrator login and update product it works fine but when new user login and updating product then it is not working and displaying loading image. Here we are using simple product with some custom attributes.

Please give me any suggestion to resolve and let me know if it is default issue.

Thanks. 

[ShoaibRehman89]

@deep1086

First check the system.log file to find any possible errors. 
Secondly, make sure that you have the latest version of M2 2.1.5 running on your machine - it would've fixed most of the issues. 

[deep1086]

Thanks @ShoaibRehman89

Here system.log file not generating in var/log other this i am checking console where I am getting error below

Uncaught TypeError: Cannot read property 'error' of null
at $.(anonymous function).(anonymous function)._onSuccess in validation.js line no 154

That means here I am not getting response. I am also checking it by disabling my custom modules.

We can upgrade it later not this time, before that i would like to make sure if it is default issue or custom code.

Let me know if you can provide more info on it.

Thanks.