I recently upgraded a 7.1 site to 7.4. All seemed well, but after about 20 minutes, a number of pages that included non-core modules had blank content.

The skin displayed, there were no errors visible or in the log. The panes simply didn't render the module content. Once I cleared the cache or entered edit mode, I could see the content. But then, 20 minutes later it was gone again.

To be clear, there are multiple modules on these pages, including the HTML core module. Generally if one module has an error, the content of the others will show. This is not the case, nothing renders.

Any suggestions?

First, thank you for the reply. I certainly restarted the application. As for the client library version, I'm not 100% what you're referring to.

If you mean did I manually increate the Current Host Version under Client Resource Management in the Host Settings, then the answer is yes!

Please bear in mind that this is, certainly a server side issue. The modules aren't being loaded at all, there are no HTML tags or anything else. The content panes are empty.

Thanks again!

English and there is only one site and it's Portal 0.

Many Thanks!