Furnace rotates once fired up. Had to be non south facing furnace. Two furnaces side by side started pointing east and west instead of south.
Environment
[23:15:41 INFO]: Minecraft Launcher 1.4.4 (through bootstrap 5) started on windows...
[23:15:41 INFO]: Current time is Jun 18, 2014 11:15:41 PM
[23:15:41 INFO]: System.getProperty('os.name') == 'Windows 7'
[23:15:41 INFO]: System.getProperty('os.version') == '6.1'
[23:15:41 INFO]: System.getProperty('os.arch') == 'x86'
[23:15:41 INFO]: System.getProperty('java.version') == '1.7.0_55'
[23:15:41 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[23:15:41 INFO]: System.getProperty('sun.arch.data.model') == '32'
[23:15:41 INFO]: JFX has been detected & successfully loaded
[23:15:42 INFO]: Refreshing local version list...
[23:15:42 INFO]: Refreshing remote version list...
[23:15:42 INFO]: Refresh complete.
[23:15:42 INFO]: Loaded 7 profile(s); selected 'd0nin380 snapshot'
[23:15:42 INFO]: Refreshing auth...
[23:15:42 INFO]: Logging in with access token
I had two other furnaces sitting between the one that rotated and a crafting table that did not rotate when fired up. it was only the end furnace that did this.