Hi Ann, Welcome!
The grout will not even out as is, and the enhancer will need to be removed in order to do so.
First find out exactly what product was used, and call their technical service department. If it was TEC, here's the number - TEC technical service department 800.832.9023
The grout probably had too much wash out, and developed a "skin" in areas where excess water was used. Sometimes something as simple as a vinegar & water wash would remove this, but not with the sealer/enhancer on top.
Hope this helps. Please get back to us, and let us know how it's going, or if you need more help.