IOnic Storage forEach returns nor all entries

I'm using the ionic storage. In the storage I have 41 entries. Now I would like to read them all into an array. Furthermore, I'd like to filter some out. My code is the following:

async getEntries() {
this.trackingEntries = [];
let promise = new
Promise((resolve, reject) => {
this.storage.forEach((value, key, index) => {
if (key != "Options0" && key != "Options1" && key != "Options2" && key !=
"Options3" && key != "welcome" && key != "LockedOptions") {
this.trackingEntries.push(value);
console.log(index, value)
}
}).then(() => {
console.log(this.trackingEntries) resolve(this.trackingEntries.length);
});
});
return promise;
}


My problem is, that the function returns different values. Sometimes 33, sometimes 38 and so on. Can somebody help me to fix this?

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