diff --git a/erpnext/stock/doctype/repost_item_valuation/test_repost_item_valuation.py b/erpnext/stock/doctype/repost_item_valuation/test_repost_item_valuation.py
index 55117ce..3184f69 100644
--- a/erpnext/stock/doctype/repost_item_valuation/test_repost_item_valuation.py
+++ b/erpnext/stock/doctype/repost_item_valuation/test_repost_item_valuation.py
@@ -186,3 +186,10 @@
 		riv.db_set("status", "Skipped")
 		riv.reload()
 		riv.cancel()  # it should cancel now
+
+	def test_queue_progress_serialization(self):
+		# Make sure set/tuple -> list behaviour is retained.
+		self.assertEqual(
+			[["a", "b"], ["c", "d"]],
+			sorted(frappe.parse_json(frappe.as_json(set([("a", "b"), ("c", "d")])))),
+		)
diff --git a/erpnext/stock/stock_ledger.py b/erpnext/stock/stock_ledger.py
index f46332b..a781479 100644
--- a/erpnext/stock/stock_ledger.py
+++ b/erpnext/stock/stock_ledger.py
@@ -272,8 +272,6 @@
 def update_args_in_repost_item_valuation(
 	doc, index, args, distinct_item_warehouses, affected_transactions
 ):
-	affected_transactions_list = [list(transaction) for transaction in affected_transactions]
-
 	doc.db_set(
 		{
 			"items_to_be_repost": json.dumps(args, default=str),
@@ -281,7 +279,7 @@
 				{str(k): v for k, v in distinct_item_warehouses.items()}, default=str
 			),
 			"current_index": index,
-			"affected_transactions": json.dumps(affected_transactions_list),
+			"affected_transactions": frappe.as_json(affected_transactions),
 		}
 	)