diff --git a/sources/editor/ui/dynamictextfieldeditor.cpp b/sources/editor/ui/dynamictextfieldeditor.cpp
index 145dd959a..5b48d30fd 100644
--- a/sources/editor/ui/dynamictextfieldeditor.cpp
+++ b/sources/editor/ui/dynamictextfieldeditor.cpp
@@ -31,6 +31,7 @@
 #include <QColorDialog>
 #include <QGraphicsItem>
 #include <QPointer>
+#include <QSignalBlocker>
 
 DynamicTextFieldEditor::DynamicTextFieldEditor(QETElementEditor *editor,
 											   PartDynamicTextField *text_field,
@@ -143,7 +144,18 @@ void DynamicTextFieldEditor::updateForm()
 		ui->m_rotation_point_center_cb->setChecked(m_text_field.data()->rotationPointCenter());
 #ifdef BUILD_WITHOUT_KF5
 #else
-		m_color_kpb -> setColor(m_text_field.data() -> color());
+			//Block signals while loading the colour into the button.
+			//KColorButton::changed fires on a programmatic setColor() as well
+			//as on user interaction, and m_color_kpb_changed() applies the new
+			//colour to *every* selected part -- so merely showing the first
+			//part's colour would overwrite the colour of all the others.
+			//The other widgets above are immune because they are wired to
+			//user-only signals (editingFinished, clicked), which setValue()
+			//and setChecked() do not emit.
+		{
+			const QSignalBlocker blocker(m_color_kpb);
+			m_color_kpb -> setColor(m_text_field.data() -> color());
+		}
 #endif
 		ui -> m_width_sb -> setValue(m_text_field.data() -> textWidth());
 		ui -> m_font_pb -> setText(m_text_field -> font().family());