Open the statistics and see the items or blocks to observe the bug.
Environment
Windows 8.1 Professional Update 1
Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz 3.10 Ghz
64 bits
Java 7 Update 60
MC-58099
Statistics items are missing or triangle-shaped
Resolved
Duplicate
0
Don't destroy tickets.