diff --git a/content/dataset.html b/content/dataset.html
index 6ffec757..d0d1cbc9 100644
--- a/content/dataset.html
+++ b/content/dataset.html
@@ -101,9 +101,9 @@ draft: false
     await loadFiles()
   }
   async function loadFiles() {
+    const db = await indexDB.loadAsync()                                                        
+    const data = await loadAllData()
     processingIndicator.isActive = true
-    var data = await loadAllData()
-    let db = await indexDB.loadAsync()                                                        
 
     window.defaultDats = []
     for (const sub of Object.values(data)) {
diff --git a/static/js/data.js b/static/js/data.js
index e259d8ff..74b8fe9c 100644
--- a/static/js/data.js
+++ b/static/js/data.js
@@ -261,17 +261,20 @@ class dataFileBase {
     })
   }
   CopyExcitationsTypeFrom(data) {
+    var exc_strings = data.excitations.map( e => [e, JSON.stringify(e.initial), JSON.stringify(e.final) ] )
     for (const ex of this.excitations) {
-      const ex2 = data.excitations.find((e) => {
-        return (JSON.stringify(e.initial) === JSON.stringify(ex.initial)) && (JSON.stringify(e.final) === JSON.stringify(ex.final))
+      const exi = JSON.stringify(ex.initial)
+      const exf = JSON.stringify(ex.final)
+      const ex2 = exc_strings.find((e) => {
+        return (e[1]=== exi) && (e[2]=== exf)
       })
       if (ex2 !== undefined) {
         if (DebugMode.Enabled) {
-          const restflag=ex.type.Value & ex2.type.Value
+          const restflag=ex.type.Value & ex2[0].type.Value
           const result=restflag==ex.type.Value
-          console.assert(result, "Excitation type error", data.molecule, ex, ex2, this.sourceFile)
+          console.assert(result, "Excitation type error", data.molecule, ex, ex2[0], this.sourceFile)
         }
-        ex.type = ex2.type
+        ex.type = ex2[0].type
       }
     }
   }
diff --git a/static/js/uniq.js b/static/js/uniq.js
index 9c69bf9c..17e067ba 100644
--- a/static/js/uniq.js
+++ b/static/js/uniq.js
@@ -1,7 +1,7 @@
 function uniq(array)
 {
    if (array.length == 0) return [];
-   var sortedArray = array.sort().map( x => [x, JSON.stringify(x)] );
+   const sortedArray = array.sort().map( x => [x, JSON.stringify(x)] );
    var uniqueArray = [ sortedArray[0][0] ];
    for (let i=1 ; i<sortedArray.length ; i++) {
      if ( sortedArray[i][1] != sortedArray[i-1][1])