From 8153e26b6dfc4f98d11005943d5fa84bba83c572 Mon Sep 17 00:00:00 2001
From: Andrew <159703254+andrewsoonqn@users.noreply.github.com>
Date: Thu, 30 Jul 2026 17:41:05 +0800
Subject: [PATCH] fix: start stream when camera URL changes

---
 src/slic3r/GUI/StatusPanel.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/slic3r/GUI/StatusPanel.cpp b/src/slic3r/GUI/StatusPanel.cpp
index 6d92569366..b939897de8 100644
--- a/src/slic3r/GUI/StatusPanel.cpp
+++ b/src/slic3r/GUI/StatusPanel.cpp
@@ -2315,6 +2315,9 @@ void StatusPanel::update_camera_state(MachineObject* obj)
     const bool has_printer_webcam = !obj->webcam_stream_url.empty();
     if (has_printer_webcam) {
         if (m_printer_webcam_url != obj->webcam_stream_url) {
+            // why: start timing belongs to the loaded camera.
+            // carrying it across printers suppresses the new camera's initial start.
+            m_camera_start_sent = std::chrono::steady_clock::time_point{};
             m_custom_camera_view->LoadURL(obj->webcam_stream_url);
             m_custom_camera_view->Show();
             m_media_ctrl->Hide();