GROMACS version: 2022.4 GROMACS modification: No Dear all, I am running gmx wham with the following command: gmx wham -it tpr-files.dat -if pullf-files.dat -o -hist -unit kCal My results are not reasonable and dramatically change with the binning and the amount of sampling. This is the window overlap: When computing the FES, I obtained the black line with half of the samp…