On migrating from AEM 6.2 to 6.4. the editable template is not giving component list to add new component in the parsys,
On double link on the parsys, Only two options is appearing (parent and Convert to experience fragment). Verified the allowed component group for the template.
Got the solution for this, the editable property in the template should be set to false in the template (structure node) but on the initial the flag should be false.
I didn't encounter this for static templates.
I have a static template but getting the same issue with /wcm/foundation.../parsys. Did you happen to come across this?