User blog comment:Blood Reaper/Beta Patch PC ONLY now out/@comment-4715168-20120222015142/@comment-174.55.41.222-20120224035158

Yep. Enchanter turns bright blue and static fire effects (like the smoldering houses in Helgen) turn a uniform bright orange. For me, this seems to have showed up after patch 1.4 (PS3) and seems random each time an area is loaded.