Problems in force computation after rerunning the case in OpenFOAM 5.x
 

I use OpenFOAM 5.x for my simulations. My simulations stop after 3 days and I have to rerun the case to continue. I am using the OlaFlow module in openfoam based on interfoam which is used to simulate water waves. Whenever I resume the simulation from the decomposed case or reconstructing at latestTime and then decomposing and rerunning the case, my force computations (forces.dat) come out to be very weird and non physical. Has anyone faced and knows how to tackle this issue? Please help.