Problem with Temporal statistics

I have the results of five simulations with the same initial conditions but slightly different geometries. Before applying temporal statistics filter, I take a 2D slice. I used the same method for each case. In the end, I successfully got the “average Y-velocities” for four of them.

For one of them, it still takes good time to calculate average values but it won’t show them. I mean there is only “solid” color option. The data of each time step seems fine. What could be the problem?