I was doing some building on a server that only today made the switch from 1.4.2 to 1.4.4. Now this server is for those who are gifted in building and I just so happened to be near the end of a large scale project. I had been using the item ID 43:6 for quite a few parts of the build and today, after updating to 1.4.4, the 43:6 block became the same as 43 or two stone slabs stacked to form one block. It threw off the look of quite a few things. Although previously placed 43:6 blocks stayed the same, the new ones placed were the same as 43 blocks or two stacked stone slabs. Please fix this soon as I, and i'm sure many others would appreciate it.