Some posts show as blank after activating

Hi, some posts show as blank (no error, just blank page) a day or so after activating the cache; when disabling it these posts immediately show (when refreshing the browser). We used only the default options.

We had the same problem when using WordPress Fastest Cache plugin and couldn’t solve it. We are not using CDN or anything like that. Should we continue to try more cache plugins? or where could the problem be. Thanks..

Narrowed down the problem a bit – seems to happen when we make a new post, the cache shows it as blank to the users, and all the other posts in its category, as well.

https://wordpress.org/plugins/w3-total-cache/