diff --git a/erpnext/manufacturing/doctype/job_card/job_card.js b/erpnext/manufacturing/doctype/job_card/job_card.js
index 7ac0b11..b051b32 100644
--- a/erpnext/manufacturing/doctype/job_card/job_card.js
+++ b/erpnext/manufacturing/doctype/job_card/job_card.js
@@ -34,7 +34,7 @@
 		frm.trigger("toggle_operation_number");
 
 		if (frm.doc.docstatus == 0 && (frm.doc.for_quantity > frm.doc.total_completed_qty || !frm.doc.for_quantity)
-			&& (!frm.doc.items || !frm.doc.items.length || frm.doc.for_quantity == frm.doc.transferred_qty)) {
+			&& (frm.doc.items || !frm.doc.items.length || frm.doc.for_quantity == frm.doc.transferred_qty)) {
 			frm.trigger("prepare_timer_buttons");
 		}
 	},
@@ -94,9 +94,9 @@
 						fieldname: 'employee'}, d => {
 						if (d.employee) {
 							frm.set_value("employee", d.employee);
+						} else {
+							frm.events.start_job(frm);
 						}
-
-						frm.events.start_job(frm);
 					}, __("Enter Value"), __("Start"));
 				} else {
 					frm.events.start_job(frm);
@@ -141,9 +141,7 @@
 			frm.set_value('current_time' , 0);
 		}
 
-		frm.save("Save", () => {}, "", () => {
-			frm.doc.time_logs.pop(-1);
-		});
+		frm.save();
 	},
 
 	complete_job: function(frm, completed_time, completed_qty) {
@@ -175,6 +173,8 @@
 	employee: function(frm) {
 		if (frm.doc.job_started && !frm.doc.current_time) {
 			frm.trigger("reset_timer");
+		} else {
+			frm.events.start_job(frm);
 		}
 	},
 
diff --git a/erpnext/manufacturing/doctype/job_card/test_job_card.py b/erpnext/manufacturing/doctype/job_card/test_job_card.py
index 353f6d2..b6a6c33 100644
--- a/erpnext/manufacturing/doctype/job_card/test_job_card.py
+++ b/erpnext/manufacturing/doctype/job_card/test_job_card.py
@@ -31,6 +31,9 @@
 				doc.operation_id = "Test Data"
 				self.assertRaises(OperationMismatchError, doc.save)
 
+			for d in job_cards:
+				frappe.delete_doc("Job Card", d.name)
+
 	def test_job_card_with_different_work_station(self):
 		data = frappe.get_cached_value('BOM',
 			{'docstatus': 1, 'with_operations': 1, 'company': '_Test Company'}, ['name', 'item'])
@@ -40,9 +43,11 @@
 
 			work_order = make_wo_order_test_record(item=bom_item, qty=1, bom_no=bom)
 
-			job_card = frappe.get_all('Job Card',
+			job_cards = frappe.get_all('Job Card',
 				filters = {'work_order': work_order.name},
-				fields = ["operation_id", "workstation", "name", "for_quantity"])[0]
+				fields = ["operation_id", "workstation", "name", "for_quantity"])
+
+			job_card = job_cards[0]
 
 			if job_card:
 				workstation = frappe.db.get_value("Workstation",
@@ -64,4 +69,7 @@
 				completed_qty = frappe.db.get_value("Work Order Operation", job_card.operation_id, "completed_qty")
 				self.assertEqual(completed_qty, job_card.for_quantity)
 
-				doc.cancel()
\ No newline at end of file
+				doc.cancel()
+
+			for d in job_cards:
+				frappe.delete_doc("Job Card", d.name)
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/work_order/test_work_order.py b/erpnext/manufacturing/doctype/work_order/test_work_order.py
index 2260bef..b7c7c32 100644
--- a/erpnext/manufacturing/doctype/work_order/test_work_order.py
+++ b/erpnext/manufacturing/doctype/work_order/test_work_order.py
@@ -7,7 +7,7 @@
 import frappe
 from frappe.utils import flt, time_diff_in_hours, now, add_months, cint, today
 from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import set_perpetual_inventory
-from erpnext.manufacturing.doctype.work_order.work_order import (make_stock_entry, 
+from erpnext.manufacturing.doctype.work_order.work_order import (make_stock_entry,
 	ItemHasVariantError, stop_unstop, StockOverProductionError, OverProductionError, CapacityError)
 from erpnext.stock.doctype.stock_entry import test_stock_entry
 from erpnext.stock.utils import get_bin