I'm having some issues with my teste migration from vV 4.2 to XF 1.2: The "Rebuild Users", after the import is taking a very, very long time. I have some 50k users, many with 10+ years of forum time. How much time is normal for this to complete? My configuration is a Xeon E3 1230 with 32 GB, running Apache with nginx and varnish. I'm getting a lot of "504 Gateway" with nginx during the Rebuild (my timeouts are high: 1600 seconds). Other problem is the Enhaced Search (I'm using Sphinx with vB): the rebuild is taking a very long time and seems bo be consuming a lot of server resouces. How normal is this? I'm a bit worried about this issues. The import by itself was long (about 33 hours with the included import) but the "rebuild XXX" are taking too long - more than the import.