Shortly after upgrading to 3.4.2, my 2 sites started acting up.
- sometimes, in my Admin Dashboard, I just cannot save the modified menu (error 500 which GoDaddy says comes from my Theme & my Theme says it comes from WP...)
- or after it finally saves it, the menu will work for a while on the site, then suddenly disappear. Back in my dashboard, there is nothing left of it...
Any advice would help.