After updating the theme from 1.8 to 1.9, the dynamic templates won’t show up anymore in the Template Builder. On the front end all is ok, the pages using a dynamic templates are looking well and functioning ok.
When I try to create a new dynamic template, a messages is prompted like ‘not able to create, wait a few minutes please..’. I couldn’t solve it and replaced the 1.9 version with 1.8. Now the dynamic templates are visible again.