I'm using r54557, and cannot view instance maps outside of an instance. While in Underbog and Slave Pens last night, the maps were available while I was in the instance, but only while in the instance.
Clicking on an instance map from the pulldown menu while outdoors does nothing. It does not generate any errors either. Just a pretty button to click ;)
I could not view the instance map either even when I was in an instance after the patch. I updated the the Cartographer version that was just released about 10 minutes ago r54736. It still will not show an instance whether in that instance or just trying to open one from somewhere else.
I have the same problem too.
Hope this gets fixed soon. I've encountered the same error when previous patch came up(the one changed API too much) and got fixed someday whe I updated with WowAceUpdater. Hope same for this
I managed to fix this issue by reconverting the info from the MPQs into new data for Cart based on the latest game data files but the script I used seems to be outdated and not everything looks the same even though the maps are all visible. So yes this issue is known and a solution has been found but getting the solution to work properly may take a bit longer.