Updated Upfront to 3.2.1 and save custom css and changes not working

this is crazy!!!!! I updated to current version of upfront.. now when I go into change any custom css, lets say in my main nave menu, it will not save may changes. even if i try to add a new css style it will not save..

also there is no live change.. before updated the changes would be shown now they are not showing..

help please!!!!