Missing buttons after upgrading site to 2.5 Same issue as found here - but no resolution: Missing buttons in settings after update to 2.5 beta

All of the orange buttons in the CP are missing but the code is there for the css and if I select a checkmark and unselect it then press return the functions still run. 

The only thing I can think that may have triggered this is there was a license discrepancy while I ran the upgrade, but I can't recreate it on a new install. 

It's missing on every single browser across multiple computers.
I had this same issue and resolved by fixing my Redactor configs. If you have a misconfigured file or a formatting error it causes problems related to rendering later in the page, likely related to Redactor throwing a javascript error.