Code bellow, can someone explain this? I recognise the mod name at the top, but little else, the patch seems to have rebuilt in any case

Loading: 01001C95..AspenWood..REGN.ICON..23..Traceback (most recent call last):  File "C:\Games\Oblivion\Mopy\basher.py", line 4542, in Execute    patchFile.scanLoadMods(SubProgress(progress,0.2,0.8))  File "C:\Games\Oblivion\Mopy\bosh.py", line 13684, in scanLoadMods    modFile.load(True,SubProgress(progress,index,index+0.5))  File "C:\Games\Oblivion\Mopy\bosh.py", line 4962, in load    self.tops[label].load(ins,unpack and (topClass != MobBase))  File "C:\Games\Oblivion\Mopy\bosh.py", line 3983, in load    self.loadData(ins, ins.tell()+self.size-20)  File "C:\Games\Oblivion\Mopy\bosh.py", line 4085, in loadData    record = recClass(header,ins,True)  File "C:\Games\Oblivion\Mopy\bosh.py", line 1776, in __init__    self.__class__.melSet.initRecord(self,header,ins,unpack)  File "C:\Games\Oblivion\Mopy\bosh.py", line 1406, in initRecord    MreRecord.__init__(record,header,ins,unpack)  File "C:\Games\Oblivion\Mopy\bosh.py", line 1573, in __init__    if ins: self.load(ins,unpack)  File "C:\Games\Oblivion\Mopy\bosh.py", line 1636, in load    self.loadData(ins,inPos+self.size)  File "C:\Games\Oblivion\Mopy\bosh.py", line 1785, in loadData    self.__class__.melSet.loadData(self,ins,endPos)  File "C:\Games\Oblivion\Mopy\bosh.py", line 1435, in loadData    loaders[type].loadData(record,ins,type,size,readId)  File "C:\Games\Oblivion\Mopy\bosh.py", line 873, in loadData    target = record.__getattribute__(self.attr)[-1]IndexError: list index out of range

Which version of Bash are you using?

The error has been discussed somewhat in the wrye bash thread, apparently it's a bug connected to region codes. It's being fixed for the next release.
In the meantime just deactivate aspen woods, build the patch and then reactivate aspen woods

Ah, I see. Fair enough.

It's never come up before, and I'm pretty sure I've rebuilt the patch with Aspen woods before, maybe not though.

Oops.

the bug appeared only after the latest update of aspen woods, at least for me it did

Ah ha, yes I had forgotten I had updated it.

It did only come up with the latest version of Aspen Wood. The problem should be fixed (was for me) with the latest version of Wrye Bash (286.)

And I would suggest asking such questions in the http://www.gamesas.com/index.php?/topic/1105224-relz-wrye-bash-thread-47/page__st__100 Instead of making a new one.