When Breadcrumbs are reset?

Yes. Good guess.

Nginx in front and uwsgi in the back.

> # Django sentry settings
> RAVEN_CONFIG = {
>     'dsn': SENTARY_DNS,
>     # If you are using git, you can also automatically configure the
>     # release based on the git info.
>     'release': website.__VERSION__,
> }


> LOGGING = {
>     'version': 1,
>     'disable_existing_loggers': False,

>     'handlers': {
>         'console': {
>             'class': 'logging.StreamHandler',
>         },
>         'sentry': {
>             'level': 'INFO',
>             'class': 'raven.contrib.django.raven_compat.handlers.SentryHandler',
>             'dsn': SENTARY_DNS,
>         },
>     },

>     'loggers': {
>         'website': {
>             'handlers': ['console', 'sentry'],
>             'level': os.getenv('DJANGO_LOG_LEVEL', 'INFO'),
>             'propagate': True,
>         }
>     }
> }


> #uwsgi settings

> [uwsgi]

> master = true
> threads = 10
> vacuum = true

> base = /var/www/app
> module = myproject.wsgi

> socket = /tmp/uwsgi.sock
> socket-timeout = 60
> harakiri = 60

> chown-socket = www-data:www-data
> chmod-socket = 664
> cheaper = 2
> processes = 3
> workers = 10

> #Log directory
> ;logto = /data/log/uwsgi/app.log

> chdir = /var/www/app/

> uid = www-data
> gid = www-data

> # Required by newrelic agent code  https://docs.newrelic.com/docs/agents/python-agent/hosting-mechanisms/python-agent-uwsgi
> enable-threads = true
> single-interpreter = true