React - within function setstate not updating state - reactjs

Question

I have a Service inclusion form, which includes 2 file uploads, one for single file selector and one more for multiple file selector. On submit click calling a function to upload the files to firebase storage and saving the links.
I'm updating the 'fileURLs' and 'sp_License' state in MultifileuploadHandler method. But it is not updating the state. when I do console.log of newState I cannot see the updated states.
Received follwoing error on submit
'FirebaseError: Function DocumentReference.set() called with invalid data. Unsupported field value: a custom File object (found in field sp_License)'
any help appreciated.!
EDIT :-
I have updated my code.
On submit, before uploading the file,save data method is called. How can I wait till upload is done and then call SaveData Method?
handleSubmit = (e) => {
e.preventDefault();
let err = this.validate();
if (!err) {
this.setState({ loading: true,disChecked:false })
this.fileupload();
this.MultifileuploadHandler();
this.saveData();
}
}
saveData=()=>{
let uid = this.props.auth.uid;
let keysToRemove = ["loading", "checked", "disChecked", "open", "message"]
let newState = Object.entries({...this.state}).reduce((obj, [key, value]) => {
if(!keysToRemove.includes(key)){
obj[key] = value
}
return obj
}, {})
console.log(newState)
this.props.UpdateUserDetails(uid, newState,this.successMessage)
}
fileupload=()=>{
//single org file
const {fileURLs,sp_License}=this.state;
const Lfilename = this.state.sp_Name + '_' + new Date().getTime();
const uploadTask = storage.ref('License/' + Lfilename).put(sp_License);
uploadTask
.then(uploadTaskSnapshot => {
return uploadTaskSnapshot.ref.getDownloadURL();
})
.then(url => {
// orgFile.push({url});
this.setState({sp_License:url})
// orgFile=url
// console.log(orgFile)
},()=>{
console.log(sp_License)
});
}
MultifileuploadHandler = () => {
const {fileURLs,sp_License}=this.state;
let files=[];
var orgFile=[];
//multi pilots file
const storageRef = storage.ref();
this.state.sp_PilotsLicense.forEach((file) => {
storageRef
.child(`License/${file.name}`)
.put(file).then((snapshot) => {
return snapshot.ref.getDownloadURL();
}).then(url =>{
files.push({url});
console.log(url)
if(files.length===this.state.sp_PilotsLicense.length)
{
console.log('url')
this.setState({ fileURLs: files },()=>{
console.log(fileURLs)
});
}
})
});
}