diff --git a/robot_log_visualizer/plotter/pyqtgraph_viewer_canvas.py b/robot_log_visualizer/plotter/pyqtgraph_viewer_canvas.py
index c8acaac..372f1a4 100644
--- a/robot_log_visualizer/plotter/pyqtgraph_viewer_canvas.py
+++ b/robot_log_visualizer/plotter/pyqtgraph_viewer_canvas.py
@@ -10,8 +10,8 @@
 import pyqtgraph as pg  # type: ignore
 from qtpy import QtCore, QtWidgets  # type: ignore
 
-from robot_log_visualizer.utils.utils import ColorPalette
 from robot_log_visualizer.signal_provider.signal_provider import ProviderType
+from robot_log_visualizer.utils.utils import ColorPalette
 
 # ------------------------------------------------------------------------
 # Type aliases
@@ -201,6 +201,11 @@ def _add_missing_curves(
                 symbol=None,
             )
 
+            # For real-time mode, disable curve clickability to avoid interfering with live updates
+            if self._signal_provider.provider_type == ProviderType.REALTIME:
+                self._curves[key].setCurveClickable(False)
+                self._curves[key].setEnabled(False)
+
     def _remove_obsolete_curves(self, paths: Sequence[Path]) -> None:
         """Delete curves that disappeared from *paths*."""
         valid = {"/".join(p) for p in paths}
@@ -240,6 +245,10 @@ def _on_mouse_click(self, event) -> None:  # noqa: N802
         if event.button() != QtCore.Qt.MouseButton.LeftButton:
             return  # ignore other buttons
 
+        # Disable point selection / labels in realtime mode
+        if self._signal_provider.provider_type == ProviderType.REALTIME:
+            return
+
         # Scene → data coordinates
         scene_pos = event.scenePos()
         if not self._plot.sceneBoundingRect().contains(scene_pos):