Convergence Issues in DeePKS-kit Iterations

[LiangWenshuo1118]

I am currently studying DeePKS-kit, focusing on LiCl molten salt as my subject of exploration. Here is what I've found after running a few iterations:

deepks.zip
If you look at the figure above, you'll see that some structures still haven't converged even after a couple of iterations. I also took a closer look at the convergence status of all structures in the last iteration, as shown in the subsequent figure:

So, I've got a couple of questions:

1. Could the reason these structures aren't converging be simply that I haven't run enough iterations?
2. Is the convergence particularly sensitive to any specific parameters? In other words, particularly sensitive to any specific parameters?