Crash whith ANIMSEQSTATS console command

Branch: Source from Github

Build version: 4.7.3-0+++depot+UE4+Releases+4.7

Detailed description of the issue: Occurs 100%. Crash when executing the console command ANIMSEQSTATS (AnimEncoding code)
Found wrong iteration in AnimEncoding.cpp, AnimationFormat_GetStats.

Scale iteration should use the NumScaleTracks (instead of the translation).

Hi IsaacVega,

I’ve entered this bug as UE-13419. Thanks for reporting it!

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