diff --git a/homeassistant/components/group/__init__.py b/homeassistant/components/group/__init__.py
index d39681cfa29e..b307a34f50a3 100644
--- a/homeassistant/components/group/__init__.py
+++ b/homeassistant/components/group/__init__.py
@@ -156,12 +156,16 @@ async def async_clean_import(hass: HomeAssistant, entry: ConfigEntry) -> None:
     entities = er.async_entries_for_config_entry(entity_reg, old_config_entry_id)
     old_entity_entry = entities[0] if entities else None
 
+    new_options = dict(entry.options)
+    new_options.pop("old_config_entry_id")
+
     if not old_config_entry or not old_entity_entry:
         # User has manually removed the entry or entity before we came here
         # Skip the migration and just continue with setting up the group sensor
         _LOGGER.warning(
             "Min/Max helper was already removed, setting up group sensor without migration"
         )
+        hass.config_entries.async_update_entry(entry, options=new_options)
         return
 
     if TYPE_CHECKING:
@@ -184,8 +188,6 @@ async def async_clean_import(hass: HomeAssistant, entry: ConfigEntry) -> None:
     await hass.config_entries.async_remove(old_entity_entry.config_entry_id)
 
     # Update options to not run migration again
-    new_options = dict(entry.options)
-    new_options.pop("old_config_entry_id")
     hass.config_entries.async_update_entry(entry, options=new_options)
 
 
diff --git a/homeassistant/components/min_max/repairs.py b/homeassistant/components/min_max/repairs.py
index 51c5e54123d4..e483d8b3a06f 100644
--- a/homeassistant/components/min_max/repairs.py
+++ b/homeassistant/components/min_max/repairs.py
@@ -83,7 +83,8 @@ class MigrateToGroupSensorFlow(RepairsFlow):
                 if new_entry.state is ConfigEntryState.LOADED:
                     break
                 if i == 9:
-                    await self.hass.config_entries.async_remove(new_config_entry_id)
+                    if self.hass.config_entries.async_get_entry(self.entry_id):
+                        await self.hass.config_entries.async_remove(new_config_entry_id)
                     return self.async_abort(
                         reason="could_not_start_group_entity",
                     )
diff --git a/tests/components/min_max/test_init.py b/tests/components/min_max/test_init.py
index 0ee73ba8250a..923990cf4e27 100644
--- a/tests/components/min_max/test_init.py
+++ b/tests/components/min_max/test_init.py
@@ -297,8 +297,6 @@ async def test_issue_is_aborted_on_could_not_start_group(
     hass: HomeAssistant,
     entity_registry: er.EntityRegistry,
     issue_registry: ir.IssueRegistry,
-    freezer: FrozenDateTimeFactory,
-    snapshot: SnapshotAssertion,
     hass_client: ClientSessionGenerator,
     hass_ws_client: WebSocketGenerator,
 ) -> None:
@@ -370,3 +368,85 @@ async def test_issue_is_aborted_on_could_not_start_group(
     assert entity.platform == DOMAIN
 
     assert not hass.config_entries.async_has_entries(GROUP_DOMAIN)
+
+
+async def test_issue_is_aborted_on_could_not_start_group_entry_remains(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+    issue_registry: ir.IssueRegistry,
+    hass_client: ClientSessionGenerator,
+    hass_ws_client: WebSocketGenerator,
+) -> None:
+    """Test migrating to group sensors fails when group setup fails.
+
+    Keep new Group entry in case of failure after min_max entry
+    has been removed.
+    """
+    assert await async_setup_component(hass, "repairs", {})
+    hass.states.async_set("sensor.input_one", "10")
+    hass.states.async_set("sensor.input_two", "20")
+
+    input_sensors = ["sensor.input_one", "sensor.input_two"]
+
+    min_max_entity_id = "sensor.my_min_max"
+
+    config_entry = MockConfigEntry(
+        data={},
+        domain=DOMAIN,
+        entry_id="123",
+        options={
+            "entity_ids": input_sensors,
+            "name": "My min_max",
+            "round_digits": 2.0,
+            "type": "max",
+        },
+        title="My min_max",
+    )
+    config_entry.add_to_hass(hass)
+    assert await hass.config_entries.async_setup(config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    entity = entity_registry.async_get(min_max_entity_id)
+    assert entity is not None
+
+    issue = issue_registry.async_get_issue(
+        DOMAIN, f"migrate_to_group_sensor-{config_entry.entry_id}"
+    )
+    assert issue is not None
+    assert issue.is_fixable is True
+    assert issue.breaks_in_ha_version == "2026.12.0"
+
+    ws_client = await hass_ws_client(hass)
+    client = await hass_client()
+    await ws_client.send_json({"id": 1, "type": "repairs/list_issues"})
+    msg = await ws_client.receive_json()
+
+    assert msg["success"]
+
+    data = await start_repair_fix_flow(
+        client, DOMAIN, f"migrate_to_group_sensor-{config_entry.entry_id}"
+    )
+    flow_id = data["flow_id"]
+    assert data["description_placeholders"] == {"title": "My min_max"}
+    assert data["step_id"] == "migrate"
+
+    with (
+        patch(
+            "homeassistant.config_entries.ConfigEntries.async_forward_entry_setups",
+            side_effect=ValueError(),
+        ) as mock_load_platforms,
+        patch("homeassistant.components.min_max.repairs.asyncio.sleep"),
+    ):
+        data = await process_repair_fix_flow(client, flow_id, json={})
+        await hass.async_block_till_done()
+
+    assert mock_load_platforms.called
+    assert data["type"] == FlowResultType.ABORT
+
+    entity = entity_registry.async_get(min_max_entity_id)
+    assert entity.config_entry_id is not None
+    assert entity.config_entry_id != config_entry.entry_id
+    assert entity.unique_id != config_entry.entry_id
+    assert entity.platform == GROUP_DOMAIN
+
+    assert not hass.config_entries.async_has_entries(DOMAIN)