V12 creating new project - value too big

So I am trying to create a new project on a brand new v12 upgrade from v11

These are the errors I am receiving inside ERPNext:

Please check the following project for new updates

Project {{ project.name }}

{% if comments %}
Last comment: {{ comments[-1].comment }} by {{ comments[-1].by }}
{% endif %}

Traceback (most recent call last):

File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/jinja.py”, line 78, in render_template
return get_jenv().from_string(template).render(context)
File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/jinja2/environment.py”, line 1008, in render
return self.environment.handle_exception(exc_info, True)
File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/jinja2/environment.py”, line 780, in handle_exception
reraise(exc_type, exc_value, tb)
File "

Any idea what this is about ?

Any news on this ? anybody else experiencing the same issue ?

this may have a pointer