Not sure my problems was releated to W3 caches latest version only. but after i updated it to the latest version i started to get some weird problems.
The site gave me a blank page on the mainpage, tested to empy all cache but the problem remains.
So i thought it might be cookie or cache problem in the browser “chrome” deleted all that. Now the site loaded correctly, i went in to the settings and enabled the normal stuff (not minify)
Tried the mainpage again and the problems came back..blank white page. site started to load slowly so i tried FF here the site loaded normal. But after some other chanches in the admin panel not releated to w3 cache the same problem accoured here. blank white page.
Might be wrong but it felt that w3 cache put some cache or cookie in the browser that went wrong.
Got fed up so i deleted W3 cache and the site went back to normal in every browser..
Cant pin down what the issue was, but its really weird and its releated to w3 cache