When I look in the LVL_PC folder for my custom map I have just munged, it is empty for some reason. Does anyone know why this is, or a fix for this. Thanks
EDIT
I have now the vistamungefix which didn't work for me.
I have windows 8.1 64bit
Bear in mind that the munge fix is (unless you applied it manually to your project) only something that fixes new projects you create from that point on. Did you test to see whether the munge fix made new projects munge successfully?