Rotativa PDF dispalying viewdata,viewbag as null in Asp.net Core 1.1.1

Hi

We are converting MVC application to MVC Core and we are using Rotativa for PDF generation. So updated Rotativa version as using Nuget for asp.net core

Now the view which we are using for PDF conversion has some ViewData and ViewBag variables but those are coming as null. Also there is one image inside view that is also not displaying which is defined as below.

<img src="/Images/PAC_logo.png" style="" alt="Predictive Acquisition Cost - Pricing Made Transparent" id="buttonName" runat="server" />

Can you please tell what is this issue and how to solve this.

Thanks,

Ashvini Awaskar