I'm guessing that Linotype posted the update prematurely and then withdrew it from their site. That's why there was an error message every time FontExplorer tried to apply the update. But now I think they finally got it working properly.
We are having the same problem placing PNG files in Illustrator CS5.
If we place it from the server it crashes....if we place the file from the desktop it works fine.
Tested on several versions of OS from 10.7 - 10-8. Strange ....on the one install of AICS6 it works fine. We do not use FontExplorer Pro, therefore no plugin to remove?
I disabled the Universal Type plugin, but still no luck placing PNG. The crash report I see alot of reference to "OpaqueEventHandler"
.....any help would be appreciated