I have a weird model. I imported an FBX liquor bottle and the sides are transparent in the viewport. It seems to render opaque during CYCLES, but I need the bottle to render properly in the viewport for a number of reasons. I'm submitting the BLEND file to see if anyone can get this fixed. I've worked with the latest version 2.92 and the latest 2.93 BETA. Nothing fixes this problem. Again, FLIPPING or RECALCULATING NORMALS does nothing.
Here's the file: https://www.dropbox.com/s/jgw06mdi6bsn5u3/bottle-test.blend?dl=0