diff --git a/src/slic3r/GUI/DeviceManager.hpp b/src/slic3r/GUI/DeviceManager.hpp
index 6e4e7d7183..8a425d14b5 100644
--- a/src/slic3r/GUI/DeviceManager.hpp
+++ b/src/slic3r/GUI/DeviceManager.hpp
@@ -307,7 +307,7 @@ public:
     bool  ams_support_virtual_tray { true };
     time_t ams_user_setting_start = 0;
     time_t ams_switch_filament_start = 0;
-    AmsStatusMain ams_status_main;
+    AmsStatusMain ams_status_main = AmsStatusMain::AMS_STATUS_MAIN_IDLE;
     int   ams_status_sub;
     int   ams_version = 0;
 
diff --git a/src/slic3r/GUI/SelectMachine.cpp b/src/slic3r/GUI/SelectMachine.cpp
index 768431b07a..f992b401c3 100644
--- a/src/slic3r/GUI/SelectMachine.cpp
+++ b/src/slic3r/GUI/SelectMachine.cpp
@@ -2288,9 +2288,7 @@ void SelectMachineDialog::show_status(PrintDialogStatus status, std::vector<wxSt
         // Fill the real per-printer max color count into the %s template.
         if (!params.empty())
             msg = wxString::Format(m_pre_print_checker.get_pre_state_msg(status), params[0], params[0]);
-    }
-
-    else if (status == PrintDialogStatus::PrintStatusAmsMappingU0Invalid) {
+    } else if (status == PrintDialogStatus::PrintStatusAmsMappingU0Invalid) {
         wxString msg_text;
         if (params.size() > 1)
             msg_text = wxString::Format(_L("Filament %s does not match the filament in AMS slot %s. Please update the printer firmware to support AMS slot assignment."), params[0], params[1]);
@@ -2316,7 +2314,7 @@ void SelectMachineDialog::show_status(PrintDialogStatus status, std::vector<wxSt
     } else if (status == PrintDialogStatus::PrintStatusNoSdcard) {
         Enable_Refresh_Button(true);
         Enable_Send_Button(false);
-    }else if (status == PrintDialogStatus::PrintStatusUnsupportedPrinter ||
+    } else if (status == PrintDialogStatus::PrintStatusUnsupportedPrinter ||
               status == PrintDialogStatus::PrintStatusOptionalPrinterModel) {
         wxString msg_text;
         const bool block_send = status == PrintDialogStatus::PrintStatusUnsupportedPrinter;
diff --git a/src/slic3r/GUI/SendToPrinter.cpp b/src/slic3r/GUI/SendToPrinter.cpp
index 4641bb4e0e..e0e6bc1c82 100644
--- a/src/slic3r/GUI/SendToPrinter.cpp
+++ b/src/slic3r/GUI/SendToPrinter.cpp
@@ -1435,74 +1435,60 @@ void SendToPrinterDialog::show_status(PrintDialogStatus status, std::vector<wxSt
 		update_print_status_msg(wxEmptyString, false, false);
 		Enable_Send_Button(false);
 		Enable_Refresh_Button(true);
-	}
-	else if (status == PrintDialogStatus::PrintStatusInvalidPrinter) {
+	} else if (status == PrintDialogStatus::PrintStatusInvalidPrinter) {
 		update_print_status_msg(wxEmptyString, true, true);
 		Enable_Send_Button(false);
 		Enable_Refresh_Button(true);
-	}
-	else if (status == PrintDialogStatus::PrintStatusConnectingServer) {
+	} else if (status == PrintDialogStatus::PrintStatusConnectingServer) {
 		wxString msg_text = _L("Connecting to server...");
 		update_print_status_msg(msg_text, true, true);
 		Enable_Send_Button(true);
 		Enable_Refresh_Button(true);
-    }
-    else if (status == PrintDialogStatus::PrintStatusReading) {
+    } else if (status == PrintDialogStatus::PrintStatusReading) {
         wxString msg_text = _L("Synchronizing device information...");
         update_print_status_msg(msg_text, false, true);
         Enable_Send_Button(false);
         Enable_Refresh_Button(false);
-    }
-
-	else if (status == PrintDialogStatus::PrintStatusReadingFinished) {
+    } else if (status == PrintDialogStatus::PrintStatusReadingFinished) {
 		update_print_status_msg(wxEmptyString, false, true);
 		Enable_Send_Button(true);
 		Enable_Refresh_Button(true);
-	}
-	else if (status == PrintDialogStatus::PrintStatusReadingTimeout) {
+	} else if (status == PrintDialogStatus::PrintStatusReadingTimeout) {
 		wxString msg_text = _L("Synchronizing device information timed out.");
 		update_print_status_msg(msg_text, true, true);
 		Enable_Send_Button(true);
 		Enable_Refresh_Button(true);
-	}
-	else if (status == PrintDialogStatus::PrintStatusInUpgrading) {
+	} else if (status == PrintDialogStatus::PrintStatusInUpgrading) {
 		wxString msg_text = _L("Cannot send print tasks when an update is in progress");
 		update_print_status_msg(msg_text, true, true);
 		Enable_Send_Button(false);
 		Enable_Refresh_Button(true);
-	}
-    else if (status == PrintDialogStatus::PrintStatusUnsupportedPrinter) {
+	} else if (status == PrintDialogStatus::PrintStatusUnsupportedPrinter) {
         wxString msg_text = _L("The selected printer is incompatible with the chosen printer presets.");
         update_print_status_msg(msg_text, true, true);
-        Enable_Send_Button(false);
+        Enable_Send_Button(true);
         Enable_Refresh_Button(true);
-    }
-	else if (status == PrintDialogStatus::PrintStatusRefreshingMachineList) {
+    } else if (status == PrintDialogStatus::PrintStatusRefreshingMachineList) {
 		update_print_status_msg(wxEmptyString, false, true);
 		Enable_Send_Button(false);
 		Enable_Refresh_Button(false);
-	}
-	else if (status == PrintDialogStatus::PrintStatusSending) {
+	} else if (status == PrintDialogStatus::PrintStatusSending) {
 		Enable_Send_Button(false);
 		Enable_Refresh_Button(false);
-	}
-	else if (status == PrintDialogStatus::PrintStatusSendingCanceled) {
+	} else if (status == PrintDialogStatus::PrintStatusSendingCanceled) {
 		Enable_Send_Button(true);
 		Enable_Refresh_Button(true);
-	}
-	else if (status == PrintDialogStatus::PrintStatusNoSdcard) {
+	} else if (status == PrintDialogStatus::PrintStatusNoSdcard) {
 		wxString msg_text = _L("Storage needs to be inserted before send to printer.");
 		update_print_status_msg(msg_text, true, true);
 		Enable_Send_Button(false);
 		Enable_Refresh_Button(true);
-    }
-    else if (status == PrintDialogStatus::PrintStatusNotOnTheSameLAN) {
+    } else if (status == PrintDialogStatus::PrintStatusNotOnTheSameLAN) {
         wxString msg_text = _L("The printer is required to be on the same LAN as Orca Slicer.");
         update_print_status_msg(msg_text, true, true);
         Enable_Send_Button(false);
         Enable_Refresh_Button(true);
-    }
-    else if (status == PrintDialogStatus::PrintStatusNotSupportedSendToSDCard) {
+    } else if (status == PrintDialogStatus::PrintStatusNotSupportedSendToSDCard) {
         wxString msg_text = _L("The printer does not support sending to printer storage.");
         update_print_status_msg(msg_text, true, true);
         Enable_Send_Button(false);