I want to create experience fragment in AEM 6.5 (No Service Pack) ,but when I try to do so , I am redirected to blank page and no default templates are shown in order to create ef.
Can you try this on a new instance without custom code? Also, Check if you are starting instance with "samplecontent" as nosamplecontent will not have any predefined templates to create XF.
Ideally, you should see a Create button at the top right.