Dunno if this is relevant, but for a while I had a "game CTDs upon loading" problem too. Eventually the issue turned out to be something right stupid - the RTW patches themselves needed to be uninstalled, so they could later be reinstalled properly into the clean install... the 1.3 patch at least was like that.
Once I did that, the game started working without problems.
Wonder if it's the same problem here ?
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