Not a bug. Great Swords aren't Blades for blademaster. MB

[CheckYourSix]

Just did a Blademaster run and had Short Swords, Long Swords, Great Swords, and the Divine Punisher at the end. Was going for the achievement unlock for the Blademaster starting item that is unlocked by using only swords. I had no shields. Full video run of the whole thing can be seen here:
https://www.youtube.com/watch?v=k17-xaKezxE

At the end you can see I don't get the achievement unlocked.
*UPDATE* the issue is that the achievement is for BLADES and the Greatsword doesn't have the blade tag. I goofed.

[Apex]

Had the same thing happen to me but I didn't know if it was because earlier in the run I had a blood dagger

[CheckYourSix]

Originally posted by Apex:

Had the same thing happen to me but I didn't know if it was because earlier in the run I had a blood dagger

Yes. Buying any "weapon" which includes shields other that a sword type is suppose to stop progress towards the achievement on that run. So buying a dagger on that run would have prevented you from getting the achievement. In my video I buy only swords and don't get the achievement. I don't buy any shields. I don't buy any daggers. I only buy short swords, long swords, great swords, and the divine punisher. That last "sword" which still interacted with the great sword to get me more max health, was the only "iffy" item I can think of that broke my completion of the achievement.

[CheckYourSix]

And after further testing, it wasn't the Divine Punisher being the issue. It was the Great Swords. They don't count as Blades. For some reason I got it stuck in my head SWORDS since I was reading the description of Stick Em With the Pointy End and not the keyword for BLADE.

[Shiroe (cortana)]

yep...
this is why its important to read....
LOL