Nope! I spent ages trying to phrase that right, so read it again: it says cells BEYOND -6464. -64safe range.
Everyone who cares about this and has a twitter account needs to tweet - and if you don't have one then make one just for this! Send tweets to @BGS_devs, @Bethblog and @DCDeacon quoting the hashtag #SkyrimWorldspaceBug
Twitter is a mass-communication tool: that's its point so if Bethesda use Twitter (and they do) they can hardly complain if it's used for what it's designed for. If they've got a decent twitter client I think they should be able to filter out the #SkyrimWorldspaceBug hashtag to see everything else separately.
Seriously: the squeaky wheel gets the grease. Make a noise and it may be fixed. Be quietly polite and it won't.
I plan on adding a call on our ModDB page soon, hopefully today and else tomorrow. I'll first have to go through it with one or two other MERP team leaders though.
I am no programmer, so forgive my ignorance, but is it completely and utterly out of the question for someone to 'look under the hood' of the game engine, identify the problem and come up with a fix/patch?
It's theoretically possible I suppose, but a great amount of work to reverse engineer the code where the bug might be found. It would require the best programmers the mod community has to invest major time in fixing it, while success isn't even guaranteed. @others, it could perhaps be in the form of a DLL injection using the SKSE rather than a real patch.