may be a dumb solution

mkwpp-parser/script.js

@@ -280,14 +280,16 @@ document.getElementById("readInput").addEventListener("click", async function()
 
     for (let player of Object.keys(megamerge)) {
         let removal = new Set();
+        let removedTimes = [];
         megamerge[player].sort((a,b)=>a.nosc - b.nosc).sort((a,b)=>(a.track*2 + a.flap)-(b.track*2 + b.flap))
         for (let i in megamerge[player]) for (let j in megamerge[player]) {
             if (i == j) continue;
             let time = megamerge[player][i];
             let cmpTime = megamerge[player][j];
             if (time.track != cmpTime.track || time.flap != cmpTime.flap) continue;
-            if (time.time == cmpTime.time && !removal.has(i)) {
+            if (time.time == cmpTime.time && !removal.has(i) && !removedTimes.includes(time)) {
                 removal.add(i);
+                removedTimes.push(time);
                 writeToOutput(`Removed ${writeTimeOutput(time)}, it has been submitted twice.`);
             } else if (time.time < cmpTime.time) {