There's a section of Haven where my shadow kind of wanders off on its own.
http://i130.photobucket.com/albums/p262/DirtTB/Spiral%20Knights/2011-10-...
I have also seen two invisible Knights/misplaced speech bubbles.
http://i130.photobucket.com/albums/p262/DirtTB/Spiral%20Knights/2011-10-...
http://i130.photobucket.com/albums/p262/DirtTB/Spiral%20Knights/2011-10-...
my royal jelly shield is white, too, with purple in the places it's usually more see-through @-@
I confirm this issue, I've a white Rock Jelly Shield (on an ATi HD 4890 on Windows 8 Developer Preview running default drivers).
Here the screenshot:
http://steamcommunity.com/id/jhewt/screenshot/613840910967795711?tab=public
I've been having a combination of all of these except the lighting caused by Snarby/Vog coats and other sources makes everything flash like crazy with the color alongside the glows being misplaced to begin with. Other oddities include strange shading on my gear (like my Wyvern helm or any helmet for that matter randomly turning a solid grey).
I've had something similar where the enemy that I'm fighting turns into a shadow and cannot advance in the clockworks. Picture of a Lumber that turned into a shadow in the middle of the Party Button on Copper Rook Gate, Depth 16 of Jelly Garden: http://steamcommunity.com/id/TurtleFrenzy2/screenshot/648743808134802833...
http://steamcommunity.com/id/TurtleFrenzy2/screenshot/648743808134804323...
There was also an area you couldn't move through in the left spikes that we think was a mini-jelly.
I haven't experienced invisible monsters, at least not that I know of.
However I did have a player go invisible for me halfway through d26 of Vanaduke. I moved my graphics from low to medium, he was still invisible. I turned off compatibility mode and he showed up. I turned compatibility mode back on and he remained visible. So, for me at least, toggling compatibility mode fixed the issue. Let me know if that works for you.
I don't think I've seen anything invisible yet, but I know that I've turned invisible. I can still see myself, but my teammates can't, and can only find me by equipment and attack auras, and dropped heat.
Elaborating on my previous post, these are the kinds of visual errors that apparently are unique to me: http://steamcommunity.com/profiles/76561198049747486/screenshots/ (Top two)
http://www.tumblr.com/photo/1280/12506455222/1/tumblr_luc1k37y8q1qbg4sn <--- crazy horns.
I can confirm this. Also, I have a white rock jelly shield.
http://steamcommunity.com/profiles/76561198031383850/screenshot/59695241...