juliaでPlot.jl tilte等に英語以外は駄目 BoundsError

Julia: ver.1.0.2
GR: ver0.6, ver1.0

GRでtitleや軸ラベルの設定

hoge = [1,2,3]; foo = [1.5,2.5,3.5]
data = [hoge, foo]
labels = ["hoge", "foo"]
using Plots
Plots.gr()
plot(data, 
     xaxis = "x axis",
     yaxis = "y axis",
     label = labels,
     title = "aa")

GR: ver0.6 & ver1.0の場合

title等に日本語やギリシャ文字を使うと，
BoundsErrorを吐く (なんでBoundsError ??)

hoge = [1,2,3]; foo = [1.5,2.5,3.5]
data = [hoge, foo]
labels = ["hoge", "foo"]
using Plots
Plots.gr()
plot(data, 
     xaxis = "x axis",
     yaxis = "y axis",
     label = labels,
     title = "あ")

BoundsError: attempt to access 2-element Array{UInt8,1} at index [3]

Stacktrace:
 [1] setindex!(::Array{UInt8,1}, ::Int64, ::Int64) at ./array.jl:583
 [2] latin1(::String) at /Users/Asahi/.julia/v0.6/GR/src/GR.jl:522
 [3] text at /Users/Asahi/.julia/v0.6/GR/src/GR.jl:554 [inlined]
 [4] gr_text(::Float64, ::Float64, ::String) at /Users/Asahi/.julia/v0.6/Plots/src/backends/gr.jl:214
 [5] gr_display(::Plots.Subplot{Plots.GRBackend}, ::Measures.Length{:mm,Float64}, ::Measures.Length{:mm,Float64}, ::Array{Float64,1}) at /Users/Asahi/.julia/v0.6/Plots/src/backends/gr.jl:943
 [6] gr_display(::Plots.Plot{Plots.GRBackend}, ::String) at /Users/Asahi/.julia/v0.6/Plots/src/backends/gr.jl:583
 [7] _show(::Base.AbstractIOBuffer{Array{UInt8,1}}, ::MIME{Symbol("image/svg+xml")}, ::Plots.Plot{Plots.GRBackend}) at /Users/Asahi/.julia/v0.6/Plots/src/backends/gr.jl:1380
 [8] show(::Base.AbstractIOBuffer{Array{UInt8,1}}, ::MIME{Symbol("image/svg+xml")}, ::Plots.Plot{Plots.GRBackend}) at /Users/Asahi/.julia/v0.6/Plots/src/output.jl:202
 [9] #sprint#228(::Void, ::Function, ::Int64, ::Function, ::MIME{Symbol("image/svg+xml")}, ::Vararg{Any,N} where N) at ./strings/io.jl:66
 [10] display_dict(::Plots.Plot{Plots.GRBackend}) at /Users/Asahi/.julia/v0.6/Plots/src/output.jl:295
 [11] (::Compat.#inner#6{Array{Any,1},IJulia.#display_dict,Tuple{Plots.Plot{Plots.GRBackend}}})() at /Users/Asahi/.julia/v0.6/Compat/src/Compat.jl:189
 [12] execute_request(::ZMQ.Socket, ::IJulia.Msg) at /Users/Asahi/.julia/v0.6/IJulia/src/execute_request.jl:223
 [13] (::Compat.#inner#6{Array{Any,1},IJulia.#execute_request,Tuple{ZMQ.Socket,IJulia.Msg}})() at /Users/Asahi/.julia/v0.6/Compat/src/Compat.jl:189
 [14] eventloop(::ZMQ.Socket) at /Users/Asahi/.julia/v0.6/IJulia/src/eventloop.jl:8
 [15] (::IJulia.##13#16)() at ./task.jl:335