In between 2014-2015, we iri members agreed to put the working TT inside the IRI timetable. In the beginning, it worked for few trains but it started to become chaotic here and anyone could update the TT according to them. So we dropped this idea.
Still few permanent issues which I know are the tt mentioned for Swarna Jayanti Rajdhani Express. In iri you will find that it passes via VVKP halt between ggn - ndls but it actually goes via DEE and its a system error which can be rectified by adding passing station as dee manually but who cares and its not the halting station and it doesnt matter.