Reading Settings -> Front Page displays “Static Page” being reset

Every day my WordPress blog is going from a static page, back to “your latest posts”.

I am not setting this setting, something is doing this automatically!

Any ideas what to check for? Is there any audit log that shows what is making this change?

I am using WordPress 3.9.2 and haven’t had issues till recently, no changes to any plugins that i can think of that could cause this.

We are using a custom theme which hasn’t been changed for the past year.

The plugins installed are below:

Version 3.1.2 | By Inpsyde GmbH

Select Display Widgets 
Version 2.03 | By Strategy11

Select Image Widget 
Version 4.1 | By Modern Tribe, Inc.

Select JJ NextGen JQuery Carousel 
Version 1.1.8 | By JJ Coder

Select NextGEN Gallery by Photocrati 
Version | By Photocrati Media

Select NextGEN Scroll Gallery 
Version 1.8.2 | By Benedikt Morschheuser

Select Redirection 
Version 2.3.6 | By John Godley

Select RSS Multi Importer 
Version 3.13 | By Allen Weiss

Select Wordfence Security 
Version 5.2.4 | By Wordfence

Solutions Collecting From Web of "Reading Settings -> Front Page displays “Static Page” being reset"