Pymol can't select water molecule from a current state, badly created pdb file?

GROMACS version: 2018.4
GROMACS modification: No
I have a huge problem. I have a pdb which consists of 11 states. I try to select molecules from the first state and observe how they move in the next nanoseconds. When I have only pdb with one state everything is fine (command below):

sele resname SOL and x < 50

Then I try to do this in a system that consists of 11 states and I am not able to do that:

sele resname SOL and x < 50 and state 1 and model eq2_0_10

Water molecules diffuse quickly, so you can see that the program selects water molecules that were in x-coordinate < 50 in all states and shows where they are in state 1/11

Maybe it is not a problem with pymol, but with my pdb? I created my pdb by using gmx trjconv
gmx trjconv -f eq2.xtc -o eq2_0_10.pdb -b 0 -e 10000 -dt 1000 -s eq2.tpr -pbc whole
but I think everything looks fine, so I don’t know where is the problem.