Segmentation fault running Sencha Architect 3.0.2.1375

I'm getting a segmentation fault when I run Sencha Architect. My OS is Ubuntu 12.04 64 bits. The output I get when I try to run it from command line is this:

user@user-desktop:~/SenchaArchitect3$ ./start.sh

Loading Architect package /home/user/.local/share/Sencha/Sencha Architect 3.0/xds-3.0.2.001375.ion

Loading Desktop Packager at /home/user/.local/share/Sencha/Sencha Architect 3.0/runtime/sdp-1.3.0.795/SenchaArchitect

[10215:10215:0331/130054:5132788268:ERROR:zygote_host_impl_linux.cc(146)] Running without the SUID sandbox! See http://ift.tt/1gjvB4z for more information on developing with the sandbox on.

Violación de segmento (`core' generado)

where "violación de segmento" = "Segmentation Fault"



I've done several tests and I've reached the following conclusions



- My computer is behind an authenticated HTTP Proxy and the error (the segmentation fault) is always generated after filling the proxy credentials in the prompt window that Architect shows.

- If I clean both ~HOME/.config/Sencha and ~HOME/.local/share/Sencha and run the program again, the first execution is successful. However, If I close the program and re-launch it, it crashes again.



Has somebody had the same problem?



Thanks in advance.