diff --git a/src/NMRiumWrapper.tsx b/src/NMRiumWrapper.tsx
index 0b62640..fd7a67e 100644
--- a/src/NMRiumWrapper.tsx
+++ b/src/NMRiumWrapper.tsx
@@ -7,7 +7,6 @@ import { useLoadSpectra } from './hooks/useLoadSpectra';
 import { usePreferences } from './hooks/usePreferences';
 import { useWhiteList } from './hooks/useWhiteList';
 import AboutUsModal from './modal/AboutUsModal';
-import { mapSpectra } from './utilities/mapSpectra';
 
 const styles: Record<'container' | 'loadingContainer', CSSProperties> = {
   container: {
@@ -40,9 +39,6 @@ export default function NMRiumWrapper() {
 
   const { workspace, preferences, defaultEmptyMessage } = usePreferences();
   const dataChangeHandler = useCallback<NMRiumChangeCb>((state, source) => {
-    //TODO: remove map spectra once this issue resolved
-    //a temporary fix by remove the `logger` and `keepSource` objects from each spectrum, this should removed once we solve the issue in nmr-load-save
-    state.data.spectra = mapSpectra(state.data.spectra);
     events.trigger('data-change', {
       state,
       source,
diff --git a/src/hooks/useLoadSpectra.ts b/src/hooks/useLoadSpectra.ts
index 3655cec..30e42fa 100644
--- a/src/hooks/useLoadSpectra.ts
+++ b/src/hooks/useLoadSpectra.ts
@@ -11,7 +11,6 @@ import { useCallback, useMemo, useState } from 'react';
 import events from '../events';
 import { getFileNameFromURL } from '../utilities/getFileNameFromURL';
 import { isArrayOfString } from '../utilities/isArrayOfString';
-import { mapSpectra } from '../utilities/mapSpectra';
 
 const PARSING_OPTIONS: Partial<ParsingOptions> = {
   onLoadProcessing: { autoProcessing: true },
@@ -24,10 +23,7 @@ async function loadSpectraFromFiles(files: File[]) {
   const {
     nmriumState: { data },
   } = await read(fileCollection, PARSING_OPTIONS);
-  //TODO: remove map spectra once this issue resolved
-  //a temporary fix by remove the `logger` and `keepSource` objects from each spectrum, this should removed once we solve the issue in nmr-load-save
-  const mapData = { ...data, spectra: mapSpectra(data?.spectra) };
-  return mapData;
+  return data;
 }
 
 async function loadSpectraFromURLs(urls: string[]) {
@@ -43,11 +39,6 @@ async function loadSpectraFromURLs(urls: string[]) {
   }, []);
 
   const { data } = await readFromWebSource({ entries }, PARSING_OPTIONS);
-  //TODO: remove map spectra once this issue resolved
-  //a temporary fix by remove the `logger` and `keepSource` objects from each spectrum, this should removed once we solve the issue in nmr-load-save
-  const mapData = { ...data, spectra: mapSpectra(data?.spectra) };
-  return mapData;
-
   return data;
 }
 
diff --git a/src/utilities/mapSpectra.ts b/src/utilities/mapSpectra.ts
deleted file mode 100644
index 9ddba56..0000000
--- a/src/utilities/mapSpectra.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-/* eslint-disable @typescript-eslint/dot-notation */
-import { Spectrum } from 'nmr-load-save';
-
-export function mapSpectra(spectra?: Spectrum[]) {
-  if (!spectra) return [];
-
-  return spectra.map((spectrum) => {
-    const cloneSpectrum = { ...spectrum };
-    if ('logger' in cloneSpectrum || 'keepSource' in cloneSpectrum) {
-      // eslint-disable-next-line @typescript-eslint/no-dynamic-delete
-      delete cloneSpectrum['logger'];
-      // eslint-disable-next-line @typescript-eslint/no-dynamic-delete
-      delete cloneSpectrum['keepSource'];
-    }
-    return cloneSpectrum;
-  }, []);
-}