Strange new item stacking bug

I had a few linens, silks, furs, and leather squares in my vault. Today I went out and got a few more of each. When I went to put them in my vault with the rest, the leather squares stacked on the old ones just like they're supposed to. But the Furs, Linens, and silks would not. They just change places with the ones in the vault. I've tried taking them out of the vault and stacking them in my bag, same problem. Might this have something to do with the recent anti-rareness material fix? Are they somehow seen as different items now?

Yes, the ARE the same items, I've triple-checked.
No, I do not have any where near 250 of any of them.

This happened once before during the beta after all the prices changed. The old items would not stack with the new. My guess is that after the update today that effected the salvage rate of fur, linen and silk they no longer count as the same item.

It's an after effect of updates that occurs once in a while. It's annoying but the merchants will value either stack.

Ahhh yes. I didn't notice as there are more than one of each type, but dividing the listed value by the number of items in each stacked showed that they do in fact have different values. That's annoying.