Confused with the damage buff from Death Mark

So recently I have just been watching some videos relating to Zer0, and I came across one that mentioned the past nerf that Death Mark received, and later that it was hotfixed, and eventually patched.

However, checking in on my Zer0, I noticed that the title card for Death Mark only lists 20% additional damage. I have tried to check my game cache to make sure I have the latest patch and all, even reset my skill points a few times and its still at 20%.

However, when I just made a new Zer0 character now, it lists an 80% extra damage on my title card. Has this happened to anyone else before, and is there a way to fix it?

I have no idea if it has anything to do with what you’re experiencing, but as far as I know, that hasn’t been patched in yet. The 80% damage bonus on Death Mark is still a hotfix.