Affects Version/s: Minecraft 14w28b
Fix Version/s: None
Environment:Windows Server 2012 64bit
After Updating from 14w21b to 14w28b.
I had Netherportals in my Netherhub, which weren't lit anymore. Some on both sides some only on one side. After going throug one of these protals i got some pratial lit portals (see screenshot).
I'll try to reproduce it with a word backup for the update to see if this happens again.
Found another issue with this "broke" portal. When you're going from the lit portal to an unlit portal, as normal a new portal will be created but unlit and you will be ported to a random spot way up in the sky (40-60 Block above ground) and as result you will fall to death.