Solemn Vow show HP non-functional

[Djrulz0826]

Using the Solemn Vow as any class other than Medic/Spy results in a blank nameplate with the HP showing as though the player were already dead.
Related Video:
https://youtu.be/AgVF0hG1KJg

[FortyTwoFortyTwo]

I don't think there a way to fix this display as it done client side, best I can do is to use hud bottom left to display target name and health