Stack of boards graphical glitch

[jaxter0123]

So somehow, as I was creating a stack of boards, the stack disappeared.
It's still physically there, as my character can't walk through the area its placed at, but its not visually there. I also can't interact with it through right clicking either. I don't really know how to prove that the stack is right in front of my character but it is.
Image 1
In addition to that, whenever I would try to make another stack of boards, this happens and the new stack is also invisible.
Image 2

Running Windows 8.1 64 bit with these specs
Specs
And Intel HD Graphics 4000

[Sevenless]

Ran into the same bug with hide stockpile.

[jorb]

This is due to java's shitty cache implementation which sometimes slows resource loading to a crawl as it iterates down a long list of resources. Clearing the cache might help. Loftar has plans for his own cache implementation down the road.

Known. Thanks.