I'm not sure what you two mean by "local" here.
If it were a global problem, everyone would see it. In particular, I would run into it all the time (and would thus presumably have fixed it).
If it can be fixed by reinstalling everything (note that in reinstalling everything, the Mod source code and data files do not change) it is hard to attribute it to the mod, since the mod remained unchanged while the problem went away.
However, it does seem to bite a few people. One possibility is that some mod component is "stressing" the game in a way that it wasn't stressed before. I.e., the game (or some local install) was always buggy, but nothing had pushed on it hard enough to show the problem before.