From the "More" drop down menu select "smart proxies" -> click on "puppetca" results in a template error of some kind. I on the latest version of foreman and foreman proxy:

foreman-proxy-0.3-0.2.noarch
foreman-0.4-0.2.noarch

Wall of text:
smart_proxy_puppetca_url failed to generate from {:controller=>"SmartProxies::Puppetca", :action=>"update", :smart_proxy_id=>"3-puppet", :id=>#<SmartProxies::PuppetCA:0x7f7207ccc600 @expires_at=nil, @valid_from=nil, @name="adnlamp-dev.missouri.edu ", @fingerprint="50:1C:AF:A1:70:05:AF:14:13:52:B0:B2:36:FB:03:EB", @state="valid", @smart_proxy_id=3>}, expected: {:controller=>"SmartProxies::Puppetca", :action=>"update"}, diff: {:smart_proxy_id=>"3-puppet", :id=>#<SmartProxies::PuppetCA:0x7f7207ccc600 @expires_at=nil, @valid_from=nil, @name="adnlamp-dev.missouri.edu ", @fingerprint="50:1C:AF:A1:70:05:AF:14:13:52:B0:B2:36:FB:03:EB", @state="valid", @smart_proxy_id=3>}

Here is the "full trace":
ActionView::TemplateError
smart_proxy_puppetca_url failed to generate from {:controller=>"SmartProxies::Puppetca", :action=>"update", :smart_proxy_id=>"3-puppet", :id=>#}, expected: {:controller=>"SmartProxies::Puppetca", :action=>"update"}, diff: {:smart_proxy_id=>"3-puppet", :id=>#}
app/helpers/application_helper.rb:105:in `display_link_if_authorized'
app/views/smart_proxies/puppetca/index.html.erb:23
app/views/smart_proxies/puppetca/index.html.erb:14:in `each'
app/views/smart_proxies/puppetca/index.html.erb:14