I found bug in debug world. Comparator bug...
1 Go to gm1 in debug world
2 Find comparator
3 Right click
4 If it dont spamm comparators to air try another one
5 And it crashes!
Environment
Windows 8.1 and Java 1.8.0_20
MC-70047
Comparator bug
Resolved
Duplicate
0
Don't mess with the debug world. MC-58898