I loaded up my creative test world for the first time in 13w41a, and all the packed ice disappeared, I think it still has the same id number, but It disappeared to form a nice floating water current lol 😃
MC-34810
When loading packed ice dissapears
Resolved
Cannot Reproduce
0
Is this still a concern in the latest Minecraft version 13w48b? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.