Unreal crash when Alt+click+drag (copy object)

Hello
Sometimes Unreal crashed when i try to copy blueprint (name is fonar, consist of fonar-mesh) with ALT+LClick+Drag.

May be my logs can help you make unreal better

gentoo linux amd64 (all latest), clang/llvm 3.6.2, unreal engine 4.10.2
gpu gtx780 x 2, cpu intel i7 ivy, 64 gb RAM.

run log http://www.pasteall.org/64369
dmesg last http://www.pasteall.org/64370
crash info folder consist of
diagnostics.txt https://bpaste.net/show/55c2baef43cd
minidump.dmp https://bpaste.net/show/3a3d683aee8b
unreal.log https://bpaste.net/show/62084d0ac36e
wermeta.xml https://bpaste.net/show/c03ec084ef62