- fixed an issue when using Python 3.10, in GUI elements

CHANGELOG.md

@@ -7,6 +7,10 @@ CHANGELOG for FlatCAM beta
 
 =================================================
 
+17.11.2021
+
+- fixed an issue when using Python 3.10, in GUI elements
+
 10.11.2021
 
 - fixed the issue with toggling visibility for Excellon objects

appGUI/GUIElements.py

@@ -1605,7 +1605,7 @@ class FCCheckBox(QtWidgets.QCheckBox):
         return self.isChecked()
 
     def set_value(self, val):
-        self.setChecked(val)
+        self.setChecked(True if val else False)
 
     def toggle(self):
         self.set_value(not self.get_value())