diff --git a/src/emevo/environments/qt_vis.py b/src/emevo/environments/qt_vis.py
index 7dbbc557..f8a67c2b 100644
--- a/src/emevo/environments/qt_vis.py
+++ b/src/emevo/environments/qt_vis.py
@@ -22,7 +22,7 @@
 from PySide6.QtCore import Qt, QTimer, Signal, Slot
 from PySide6.QtGui import QGuiApplication, QMouseEvent, QPainter, QSurfaceFormat
 from PySide6.QtOpenGLWidgets import QOpenGLWidget
-from PySide6.QtWidgets import QGridLayout, QWidget
+from PySide6 import QtWidgets
 
 from emevo.environments.moderngl_vis import MglRenderer
 from emevo.environments.phyjax2d import Space, StateDict
@@ -45,7 +45,7 @@ class AppState:
     paused_before: bool = False
 
 
-class QtVisualizer(QOpenGLWidget):
+class MglWidget(QOpenGLWidget):
     selectionChanged = Signal(int)
 
     def __init__(
@@ -55,9 +55,9 @@ def __init__(
         y_range: float,
         space: Space,
         stated: StateDict,
-        figsize: tuple[float, float] | None = None,
+        figsize: tuple[float, float],
         sensor_fn: Callable[[StateDict], tuple[NDArray, NDArray]] | None = None,
-        parent: QWidget | None = None,
+        parent: QtWidgets.QWidget | None = None,
     ) -> None:
         # Set default format
         QSurfaceFormat.setDefaultFormat(_mgl_qsurface_fmt())
@@ -107,7 +107,7 @@ def paintGL(self) -> None:
     def render(self, stated: StateDict) -> None:
         self._fbo.use()
         self._ctx.clear(1.0, 1.0, 1.0)
-        self._renderer.render(self._env)  # type: ignore
+        self._renderer.render(stated)  # type: ignore
 
     def show(self, timer: QTimer):
         self._timer = timer
@@ -121,30 +121,25 @@ def _emit_selected(self, index: int | None) -> None:
 
     def mousePressEvent(self, evt: QMouseEvent) -> None:
         position = self._scale_position(evt.position())
-        query = self._env.get_space().point_query(
-            position,
-            0.0,
-            shape_filter=make_filter(CollisionType.AGENT, CollisionType.FOOD),
-        )
-        if len(query) == 1:
-            shape = query[0].shape
-            if shape is not None:
-                body_index = self._env.get_body_index(shape.body)
-                if body_index is not None:
-                    self._state.pantool.start_drag(position, shape, body_index)
-                    self._emit_selected(body_index)
-                    self._paused_before = self._state.paused
-                    self._state.paused = True
-                    self._timer.stop()
-                    self.update()
+        # query = self._env.get_space().point_query(
+        #     position,
+        #     0.0,
+        #     shape_filter=make_filter(CollisionType.AGENT, CollisionType.FOOD),
+        # )
+        # if len(query) == 1:
+        #     shape = query[0].shape
+        #     if shape is not None:
+        #         body_index = self._env.get_body_index(shape.body)
+        #         if body_index is not None:
+        #             self._state.pantool.start_drag(position, shape, body_index)
+        #             self._emit_selected(body_index)
+        #             self._paused_before = self._state.paused
+        #             self._state.paused = True
+        #             self._timer.stop()
+        #             self.update()
 
     def mouseReleaseEvent(self, evt: QMouseEvent) -> None:
-        if self._state.pantool.is_dragging:
-            self._state.pantool.stop_drag(self._scale_position(evt.position()))
-            self._emit_selected(None)
-            self._state.paused = self._state.paused_before
-            self._timer.start()
-            self.update()
+        pass
 
     @Slot()
     def pause(self) -> None:
@@ -155,7 +150,7 @@ def play(self) -> None:
         self._state.paused = False
 
 
-class BarChart(QWidget):
+class BarChart(QtWidgets.QWidget):
     def __init__(
         self,
         initial_values: dict[str, float | list[float]],
@@ -200,7 +195,7 @@ def __init__(
         self._chart_view.chart().show()
         self._chart_view.chart().legend().show()
         # create main layout
-        layout = QGridLayout(self)
+        layout = QtWidgets.QGridLayout(self)
         layout.addWidget(self._chart_view, 1, 1)
         self.setLayout(layout)
         self.setVisible(True)
@@ -209,9 +204,11 @@ def _make_barset(self, name: str, value: float | list[float]) -> QBarSet:
         barset = QBarSet(name)
         if isinstance(value, float):
             barset.append(value)
-        else:
+        elif isinstance(value, list):
             for v in value:
                 barset.append(v)
+        else:
+            raise ValueError(f"Invalid value for barset: {value}")
         self.barsets[name] = barset
         self.series.append(barset)
         return barset
@@ -233,9 +230,11 @@ def updateValues(self, values: dict[str, float | list[float]]) -> None:
                 new_barsets.append(barset)
             elif isinstance(value, float):
                 self.barsets[name].replace(0, value)
-            else:
+            elif isinstance(value, list):
                 for i, vi in enumerate(value):
                     self.barsets[name].replace(i, vi)
+            else:
+                raise ValueError(f"Invalid value for barset {value}")
 
         for name in list(self.barsets.keys()):
             if name not in values: