Curitiba Master Hall, Curitiba, Brazil
This concert was the first one announced for The Sisters' XXX 30th Stage Anniversary Tour gigs in South America in 2012.
It was already listed on their official Live News page, but not with the venue's website. After some time, it disappeared from The Sisters' list as well.
The reasons are not clear, but seem to be within the organisational process on part of the promoters.
See also the according thread on Heartland Forum.