When I install Divi (2.5+ tested) on a fresh WordPress 4.6 install, I am unable to save any customizer changes. WHen I click save, nothing saves, and the dev console reports an Internal 500 error.
If I install the same Divi theme(s) on a WordPress 4.5.3 fresh install, the customizer saves properly and no errors are returned.
Out of curiosity I did an in-wordpress update from 4.5.3 -> 4.6 on a working website, and immediately the saves wouldnt work and the 500 error was happening again.
Divi support tell me it’s my server creating the issue, but it seems to me a Divi compatibility issue with 4.6 ? Any insight / advice on this problem?