[Nektar-users] History Point problem

Dear All, When I try to run an analysis by requesting a History File, Nektar++ 4.0 tells me that: /*History point 0,0,0 cannot be found in the mesh.*/ but in the .xml file 0, 0, 0 point exists as vertex as you see below: /* <V ID="9761">0.00000000e+00 0.00000000e+00 0.00000000e+00</V>*/ When I remove history points part from the .xml file, it runs without problem. What may be the reason for this problem? NOTE: The mesh is composed of both pyrisms and hexahedras. So .xml file includes two composites. Regards, Kamil.