diff --git a/tests/integration/helpers/test_tools.py b/tests/integration/helpers/test_tools.py
index c334a7366da..bd43adad95d 100644
--- a/tests/integration/helpers/test_tools.py
+++ b/tests/integration/helpers/test_tools.py
@@ -186,6 +186,7 @@ def csv_compare(result, expected):
 
 def wait_condition(func, condition, max_attempts=10, delay=0.1):
     attempts = 0
+    result = None
     while attempts < max_attempts:
         result = func()
         if condition(result):
@@ -194,4 +195,6 @@ def wait_condition(func, condition, max_attempts=10, delay=0.1):
         if attempts < max_attempts:
             time.sleep(delay)
 
-    raise Exception(f"Function did not satisfy condition after {max_attempts} attempts")
+    raise Exception(
+        f"Function did not satisfy condition after {max_attempts} attempts. Last result:\n{result}"
+    )
diff --git a/tests/integration/test_refreshable_mat_view/test.py b/tests/integration/test_refreshable_mat_view/test.py
index c25d37fdc19..ed8e9de1168 100644
--- a/tests/integration/test_refreshable_mat_view/test.py
+++ b/tests/integration/test_refreshable_mat_view/test.py
@@ -377,8 +377,8 @@ def test_real_wait_refresh(
         "test_rmv",
         condition=lambda x: x["last_refresh_time"] == rmv["next_refresh_time"],
         # wait for refresh a little bit more than 10 seconds
-        max_attempts=12,
-        delay=1,
+        max_attempts=30,
+        delay=0.5,
     )
 
     if append:
diff --git a/tests/integration/test_refreshable_mat_view_replicated/test.py b/tests/integration/test_refreshable_mat_view_replicated/test.py
index 4293a3ca23b..cf09dc9c8e1 100644
--- a/tests/integration/test_refreshable_mat_view_replicated/test.py
+++ b/tests/integration/test_refreshable_mat_view_replicated/test.py
@@ -221,13 +221,19 @@ def fn_setup_tables():
 @pytest.mark.parametrize(
     "select_query",
     [
-        "SELECT now() as a, number as b FROM numbers(2)",
-        "SELECT now() as a, b as b FROM src1",
+        "SELECT now() as a, number as b FROM numbers(2) SETTINGS insert_deduplicate=0",
+        "SELECT now() as a, b as b FROM src1 SETTINGS insert_deduplicate=0",
     ],
 )
-@pytest.mark.parametrize("with_append", [True, False])
-@pytest.mark.parametrize("empty", [True, False])
-def test_simple_append(
+@pytest.mark.parametrize(
+    "with_append",
+    [True, False],
+)
+@pytest.mark.parametrize(
+    "empty",
+    [True, False],
+)
+def test_append(
     module_setup_tables,
     fn_setup_tables,
     select_query,
@@ -247,8 +253,6 @@ def test_simple_append(
     rmv = get_rmv_info(node, "test_rmv", wait_status="Scheduled")
     assert rmv["exception"] is None
 
-    node.query("SYSTEM SYNC DATABASE REPLICA ON CLUSTER default default")
-
     records = node.query("SELECT count() FROM test_rmv")
 
     if empty:
@@ -256,20 +260,13 @@ def test_simple_append(
     else:
         assert records == "2\n"
 
-    for n in nodes:
-        n.query(f"SYSTEM TEST VIEW test_rmv SET FAKE TIME '{rmv['next_refresh_time']}'")
+    node.query(f"SYSTEM TEST VIEW test_rmv SET FAKE TIME '{rmv['next_refresh_time']}'")
 
     rmv2 = get_rmv_info(node, "test_rmv", wait_status="Scheduled")
 
     assert rmv2["exception"] is None
 
-    node.query("SYSTEM SYNC DATABASE REPLICA ON CLUSTER default default")
-    if empty:
-        expect = "2\n"
-
-    if not with_append:
-        expect = "2\n"
-
+    expect = "2\n"
     if with_append and not empty:
         expect = "4\n"
 
@@ -373,6 +370,9 @@ def test_real_wait_refresh(
     empty,
     to_clause,
 ):
+    if node.is_built_with_sanitizer():
+        pytest.skip("Disabled for sanitizers")
+
     table_clause, to_clause_, tgt = to_clause
 
     create_sql = CREATE_RMV.render(
@@ -380,7 +380,7 @@ def test_real_wait_refresh(
         refresh_interval="EVERY 10 SECOND",
         to_clause=to_clause_,
         table_clause=table_clause,
-        select_query="SELECT now() as a, b FROM src1",
+        select_query="SELECT now() as a, b FROM src1 SETTINGS insert_deduplicate=0",
         with_append=append,
         on_cluster="default",
         empty=empty,