Update

src/components/PoDetail/PoDetail.tsx

@@ -665,6 +665,7 @@ const PoDetail: React.FC<Props> = ({ po, warehouse, printerCombo }) => {
               value={lotNoInput}
               onChange={(e) => setLotNoInput(e.target.value)}
               onBlur={() => syncRowInputToParent(lotNoInput, dnQtyInput)}
+              onClick={(e) => e.stopPropagation()}
               // onFocus={(e) => {setFocusField(e.target as HTMLInputElement);}}
             />
           </TableCell>
@@ -677,6 +678,7 @@ const PoDetail: React.FC<Props> = ({ po, warehouse, printerCombo }) => {
               value={dnQtyInput}
               onChange={(e) => setDnQtyInput(e.target.value)}
               onBlur={() => syncRowInputToParent(lotNoInput, dnQtyInput)}
+              onClick={(e) => e.stopPropagation()}
               InputProps={{
                 inputProps: {
                   min: 0, // Optional: set a minimum value
@@ -689,9 +691,10 @@ const PoDetail: React.FC<Props> = ({ po, warehouse, printerCombo }) => {
           <TableCell align="center">
             <Button 
               variant="contained"
-              onClick={() => 
-                handleStart()
-              }
+              onClick={(e) => {
+                e.stopPropagation();
+                handleStart();
+              }}
               >
               {t("submit")}
             </Button>