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:

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, is the lack of convergence possibly due to some parameters not being set quite right?

Input files:
deepks.zip