My translucent material is not showing up in 3d view

I amd using 5.3.2. I think this happened just recently, I started this project month ago, i just made a block out material for my water and i set up the translucent blend node, and the surface translucency volume, it worked fine. And I did not change any setting about it and light and the preference and stuff. But it was just gone, not showing any thing. when I turn the mode to opaque, it shows up. But no matter i change the value of opacity, just not showing up any thing. Any one can jump out to explain what is going on for my work. please help me to fix this!!

When it is opaque:

when it is translucent:

perhaps the normals of the water are flipped? Try turning on 2-sided in the material and see if it show up. If so you have to flip the normals of the water mesh.