Greek letters do cause GS to croak OS X 10.10.5 MATLAB R2015A

I have tried both GS 9.10 and 9.16, and both have this issue on OS X 10.10.5. export_fig works nicely for PDF/EPS for any figure without greek letters. However, if there are greek letters in the axes, title, legend, etc. then I get the following error:

Error: /typecheck in /findfont
Operand stack:
CMMI10
Execution stack:
%interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1900 1 3 %oparray_pop 1899 1 3 %oparray_pop --nostringval-- 1883 1 3 %oparray_pop 1771 1 3 %oparray_pop --nostringval-- %errorexec_pop .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- 1852 1 3 %oparray_pop
Dictionary stack:
--dict:1168/1684(ro)(G)-- --dict:0/20(G)-- --dict:121/200(L)--
Current allocation mode is local
Last OS error: Invalid argument
Current file position is 90356
GPL Ghostscript 9.10: Unrecoverable error, exit code 1
Ghostscript error: perhaps /private/tmp/tp689c770a_474e_4e37_ba07_d9f7465997a6.pdf is open by another application
Ghostscript options: -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sOutputFile="/private/tmp/tp689c770a_474e_4e37_ba07_d9f7465997a6.pdf" -dEPSCrop -sFONTPATH="/usr/share/fonts:/usr/local/share/fonts:/usr/share/fonts/X11:/usr/local/share/fonts/X11:/usr/share/fonts/truetype:/usr/local/share/fonts/truetype" -f "/private/tmp/tpe59db012_dabe_4ed4_b8b9_cbf729dd565a.eps"

export_fig error. Please ensure:
that you are using the latest version of export_fig
and that you have Ghostscript installed
and that you do not have multiple versions of export_fig installed by mistake
and that you did not made a mistake in the expected input arguments

If the problem persists, then please report a new issue.

Error using eps2pdf (line 152)
Error: /typecheck in /findfont
Operand stack:
CMMI10
Execution stack:
%interp_exit .runexec2
--nostringval--
--nostringval--
--nostringval-- 2
%stopped_push
--nostringval--
--nostringval--
--nostringval-- false 1
%stopped_push 1900 1
3 %oparray_pop 1899 1
3 %oparray_pop
--nostringval-- 1883 1
3 %oparray_pop 1771 1
3 %oparray_pop
--nostringval--
%errorexec_pop .runexec2
--nostringval--
--nostringval--
--nostringval-- 2
%stopped_push
--nostringval-- 1852 1
3 %oparray_pop
Dictionary stack:
--dict:1177/1684(ro)(G)--
--dict:0/20(G)--
--dict:121/200(L)--
Current allocation mode is
local
Last OS error: Invalid
argument
Current file position is 90356
GPL Ghostscript 9.10:
Unrecoverable error, exit code
1

Error in export_fig (line 622)
eps2pdf(tmp_nam,
pdf_nam_tmp,
1,
options.append,
options.colourspace==2,
options.quality,
options.gs_options);

Any thoughts?

Thanks,
Adam