I'm running Joomla version, 3.6.4. at the moment, and have a very annoying problem with Single Contact Forms. I have a menu item displaying a Single Contact. It used to work fine. However, since the update to 3.6.4, the Contact displays only once, and then never again.
At each subsequent rendering or refresh of the same page, it shows a completely blank screen.
Then, if I change the Template of the Contact eg: to Beez3 or vica versa to protostar, and clean the caches, the contact form renders again. But only once.... And it can go on in loops.
Someone please help, before I become crazy... Thanks!