From b65541f24fc2d1b8688678855d115b31a3efcd48 Mon Sep 17 00:00:00 2001
From: Kacper Donat <kadet1090@gmail.com>
Date: Fri, 27 Feb 2026 22:59:52 +0100
Subject: [PATCH] Gui: Clear cached shape after change to Deviation

(cherry picked from commit 2fb271ff28ae418106eb8f295637ae27b3444f3f)
---
 src/Mod/Part/Gui/ViewProviderExt.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Mod/Part/Gui/ViewProviderExt.cpp b/src/Mod/Part/Gui/ViewProviderExt.cpp
index 3709c3959f..8b96b1b0f9 100644
--- a/src/Mod/Part/Gui/ViewProviderExt.cpp
+++ b/src/Mod/Part/Gui/ViewProviderExt.cpp
@@ -319,6 +319,7 @@ void ViewProviderPartExt::onChanged(const App::Property* prop)
     // to freeze the GUI
     // https://forum.freecad.org/viewtopic.php?f=3&t=24912&p=195613
     if (prop == &Deviation) {
+        lastRenderedShape = {};
         if (isUpdateForced() || Visibility.getValue()) {
             updateVisual();
         }
@@ -327,6 +328,7 @@ void ViewProviderPartExt::onChanged(const App::Property* prop)
         }
     }
     if (prop == &AngularDeflection) {
+        lastRenderedShape = {};
         if (isUpdateForced() || Visibility.getValue()) {
             updateVisual();
         }