Need Help with WIP Lightsaber Mod Blade Transparency Bug

[EwokKotor]

I am working on a mod where I have blades coming out of a mace head. I am using Kotor Blender for reference.

The blades do not have transparency issues with the background or other models, but when viewed from an angle where the mace head mesh of the model is behind the blade it becomes transparent.

I did, just for troubleshooting purposes, change the blade .txi from blending additive to blending normal, and this did solve the transparency issue, but of course ruined the glowing lightsaber blade effect. I am not sure if there is really a good fix for this but I thought it couldn't hurt to check and see if anyone could maybe help.

I am attaching some screenshots and a short video of the issue I am having. Thanks for any help you can give.