I also have the same problem, fontSize is not saved and I find the default value again
"typography": {
"type": "object",
"default": {
"family": "Default",
"fontSize": {
"desktop": 12,
"tablet": 10,
"mobile": 10
},
"fontWeight": 400,
"fontStyle": "normal",
"text_transform" : "none",
"text_decoration" : "auto",
"lineHeight": "135%",
"letterSpacing": "0px"
}
},
