Unbound ligand from complex

GROMACS version: 2023.3
GROMACS modification: Yes
Here post your question

I am currently trying to simulate the protein ligand complex for 1 microsecond. I already did 1 ms simulation for 2 complex’s it was good and now I am trying to simulate my third complex but the issue is after 50, 150 or 200 nanosecond my RMSD goes all up to 6 nm or 5 nm and when I visualise the trajectory using VMD or Pymol the ligand was located in some other region as its automatically unbound from the protein.

what might be the reason for this kind of crazy RMSD and ligand unbound action ?

reference picture

Hello, i think you might be facing similar problem to what is mentioned here-Removing jumps from the simulation trajectory - #6 by Elahe

Thanks, ShintY
I just went through and they mentioned about correcting the trajectory. I actually tried that but
still facing the same error almost tried all kinds of possible options and tried simulating multiple times still facing the same :-(