Protip: Solve "No Preview Available" on QlikView Access Point
As an FYI to others who might encounter this issue:
We had a working QlikView application deployed on our Access Point. The appropriate users could access it correctly, but it would not generate a preview. We got the QlikView logo with "No Preview Available".
We had Webview turned on (in QlikView) when we saved the application. When I unclicked Webview and resaved the app, the preview generated without a problem.
I do not know if this is common knowledge; I had posted a question about it, but I cannot find that discussion (?).
TL/DR version: Turn off WebView before you publish your QlikView applications.
Re: Protip: Solve "No Preview Available" on QlikView Access Point
Go to setting tab>click on opening>bydefault it shows "opening sheet button" checked >mark it unchecked and checked "no images button">then reload>again checked "the opening sheet button" and unchecked "No image button">reload the qvw.>you got the image.