Unable to View SharePoint 2013 WF's in SharePoint Designer 2013

[Rohit Kumar Raj]

Hello Team, 

Currently am facing issue related to the Workflow not getting opened up in SharePoint Designer 2013. 

Few SharePoint 2013 WF are affected. 

Kindly find the attached screen shot of the error which i am getting in SharePoint Designer. 

Any help would be appreciable. 

Thanks 

Rohit 

[#2]

Are you having any error when openin the problematic workflows? I only see in your screenshot a blank workflow

[#3]

We had a logic configured on that workflow however when accessed it through SPD 2013 then it shows as Empty.