diff --git a/src/uvc-sensor.h b/src/uvc-sensor.h
index ad2c5938d04..911570520ad 100644
--- a/src/uvc-sensor.h
+++ b/src/uvc-sensor.h
@@ -46,8 +46,12 @@ class uvc_sensor : public raw_sensor_base
     
     void power_for_duration( std::chrono::steady_clock::duration timeout = std::chrono::milliseconds( 500 ) )
     {
-        acquire_power();
         std::weak_ptr< uvc_sensor > weak = std::dynamic_pointer_cast< uvc_sensor >( shared_from_this() );
+        if( auto strong = weak.lock() )
+        {
+            strong->acquire_power();
+        }
+        
         std::thread release_power_thread( [weak, timeout]()
         {
             std::this_thread::sleep_for( timeout );
diff --git a/unit-tests/live/d400/test-hdr-long.py b/unit-tests/live/d400/test-hdr-long.py
index fa8a9424f37..050cf96bbfb 100644
--- a/unit-tests/live/d400/test-hdr-long.py
+++ b/unit-tests/live/d400/test-hdr-long.py
@@ -357,6 +357,10 @@ def check_sequence_id(pipe):
         if test.check(at_least_one_frame_supported_seq_id):
             test.check(first_series_last_merged_ts != -1)
             test.check(depth_sensor.get_option(rs.option.hdr_enabled) == 1)
+            print("cfg1 = ", cfg)
+            cfg = rs.config()
+            cfg.enable_stream(rs.stream.depth)
+            print("cfg2 = ", cfg)
             pipe.start(cfg)
 
             for i in range(0, 10):