Blades of the Fallen Prince possible visual bug

Hello, as the title suggests, this could be a possible visual bug in the Blades of the Fallen Prince, specifically in its “Frostmourne’s Legacy” appareance (‘‘visual bug’’ present in all colors).

The visual bug involves the position of the icy effect running along the blade, that protrudes at the end of the blade’s edge, how can I be sure it’s positioned incorrectly? This is due to artwork by the design’s creator, Calvin Boice, and also to concept art for this design.

Yes, I’m aware that concept art doesn’t always end up being the final result in the game, however, Calvin Boice’s official artwork doesn’t look like concept art and shows this icy effect running along the blade in a different position than the one we currently have in the game.

I’ve always felt strange about the position of this icy effect running along the blade in this appareance called “Frostmourne’s Legacy” I felt like something was wrong or incorrect, seeing the Calvin Boice art I found recently made everything make sense, I’ve taken two screenshots using the orange color of this appareance for better visibility, one of them has the brightness increased to better show the problem I want to explain, I’ve circled the area in red, I’ll also attach Calvin Boice’s art to compare both positions of the icy effect running along the blade.

Image of how it currently looks in-game: https ://i.imgur.com/KL3EdYs.png
Image of how it looks in Calvin Boice’s art: https ://i.imgur.com/yXruPdK.jpg

This possible visual bug has existed since they were released in Legion, and perhaps no one noticed because they assumed it was meant to be, If it really is a visual bug, I would greatly appreciate it if it were fixed, If it is intentional, I would like it to be specified, although I personally would like it to be modified to the version of Calvin Boice’s art.