Segue configured but not fired

Question

I have the following setup of my storyboard

NC --> TVC --> VC --> TVC --> VC

Problem I face is that first segue from TableViewController to ViewController does work and the second does not. Both are configured as push segues ( actual all transitions are configured this way ) Both tables are filled in dynamically. Just First one works and second not. What could be an issue ? segues has named set up , table cells has ids, event on selecting table cell is firing in both cases, however prepare for segue is not firing in second case.

Thanks in advance