Seeing things?

[Ukase]

Before anyone goes nuts...I burned through a metric ton of converters trying to reproduce this result and could not, so I didn't report it as a bug. 
I am actually thinking this is more of a server load playing games with my graphics, as right before this, I had converted a level 10 defense/end/recharge into a teleport protection, +res. 

And, honestly, I can't be 100% sure this happened, because I was in the midst of doing a fair number of conversion on my alt. I tend to pull out the attuned when my characters hit 47, and slot the 50's in it. 
But it sure looks like it happened. 

And for older eyes like mine - note the starting and ending levels of the enhancement. 

[Sunsette]

I've seen weird graphical errors like this occur frequently enough that I don't really pay them any mind, especially when I'm in the middle of selling or switching characters. 

[Frozen Burn]

I've seen this happen occasionally when converting.  It will change the level in the conversion window, but the actual level of the IO remains the same in your tray - at least, it always has for me.