- Keep a reference to each window's expected monitor. Using the screen position can cause windows to switch sides under the right circumstances.

- Some comments to help keep the onShellMessage function straight.
- Repositioned SetWinDelay calls to get better effect for everything.
- Fixed a bug where a windows activation of a window on another monitor would cause weird behavior.

src/Manager.ahk

@@ -331,6 +331,7 @@ Manager_manage(pm, pv, wndId) {
 		Monitor_moveWindow(m, wndId)
 
 		Manager_managedWndIds .= wndId ";"
+		Manager_#%wndId%_monitor     := m
 		Manager_#%wndId%_tags        := tags
 		Manager_#%wndId%_isDecorated := isDecorated
 		Manager_#%wndId%_isFloating  := isFloating
@@ -439,9 +440,7 @@ Manager_onShellMessage(wParam, lParam) {
 			isChanged := False
 
 		If a Or isChanged {
-			SetWinDelay, 0
 			View_arrange(Manager_aMonitor, Monitor_#%Manager_aMonitor%_aView_#1)
-			SetWinDelay, 10
 			Bar_updateView(Manager_aMonitor, Monitor_#%Manager_aMonitor%_aView_#1)
 		}
 		
@@ -454,19 +453,24 @@ Manager_onShellMessage(wParam, lParam) {
 		
 		If wndIds {
 			If (Config_onActiveHiddenWnds = "view") {
+				; Grab the first of such windows and make it visible.
+				; All others get forgotten (until the next round?)
 				wndId := SubStr(wndIds, 1, InStr(wndIds, ";") - 1)
 				Loop, % Config_viewCount
 					If (Manager_#%wndId%_tags & 1 << A_Index - 1) {
+						Manager_aMonitor := Manager_#%wndId%_monitor
 						Monitor_activateView(A_Index)
 						Break
 					}
 			} Else {
 				StringTrimRight, wndIds, wndIds, 1
 				StringSplit, wndId, wndIds, `;
+				; Otherwise re-hide them.
 				If (Config_onActiveHiddenWnds = "hide") {
 					Loop, % wndId0
 						WinHide, % "ahk_id " wndId%A_Index%
 				} Else If (Config_onActiveHiddenWnds = "tag") {
+					; Or tag all of them for the current view.
 					t := Monitor_#%Manager_aMonitor%_aView_#1
 					Loop, % wndId0 {
 						wndId := wndId%A_Index%
@@ -661,6 +665,7 @@ Manager_unmanage(wndId) {
 			View_delWnd( Manager_aMonitor, A_Index, wndId )
 			Bar_updateView(Manager_aMonitor, A_Index)
 		}
+	Manager_#%wndId%_monitor     :=
 	Manager_#%wndId%_tags        :=
 	Manager_#%wndId%_isDecorated :=
 	Manager_#%wndId%_isFloating  :=

src/Monitor.ahk

@@ -81,10 +81,12 @@ Monitor_activateView(v) {
 		Loop, PARSE, wndIds, `;
 			If Not (Manager_#%A_LoopField%_tags & (1 << v - 1))
 				WinHide, ahk_id %A_LoopField%
+		SetWinDelay, 10
 		DetectHiddenWindows, On
 		View_arrange(m, v)
 		DetectHiddenWindows, Off
 		StringTrimRight, wndIds, View_#%m%_#%v%_wndIds, 1
+		SetWinDelay, 0
 		Loop, PARSE, wndIds, `;
 			WinShow, ahk_id %A_LoopField%
 		SetWinDelay, 10
@@ -177,19 +179,9 @@ Monitor_getWorkArea(m) {
 }
 
 Monitor_moveWindow(m, wndId) {
-	Local fX, fY, monitor, wndHeight, wndWidth, wndX, wndY
+	Global
 	
-	WinGetPos, wndX, wndY, wndWidth, wndHeight, ahk_id %wndId%
-	monitor := Monitor_get(wndX+wndWidth/2, wndY+wndHeight/2)
-	If Not (m = monitor) {
-		; move the window to the target monitor and scale it, if it does not fit on the monitor
-		fX := Monitor_#%m%_width / Monitor_#%monitor%_width
-		fY := Monitor_#%m%_height / Monitor_#%monitor%_height
-		If (wndX-Monitor_#%monitor%_x+wndWidth > Monitor_#%m%_width) Or (wndY-Monitor_#%monitor%_y+wndHeight > Monitor_#%m%_height)
-			Manager_winMove(wndId, Monitor_#%m%_x+fX*(wndX-Monitor_#%monitor%_x), Monitor_#%m%_y+fY*(wndY-Monitor_#%monitor%_y), fX*wndWidth, fY*wndHeight)
-		Else
-			Manager_winMove(wndId, Monitor_#%m%_x+(wndX-Monitor_#%monitor%_x), Monitor_#%m%_y+(wndY-Monitor_#%monitor%_y), wndWidth, wndHeight)
-	}
+	Manager_#%wndId%_monitor = m
 }
 
 Monitor_setWindowTag(t) {

src/View.ahk

@@ -109,12 +109,15 @@ View_delWnd(m, v, wndId) {
 View_arrange(m, v) {
 	Local fn, l, wndIds
 	
+	; All window actions are performed on independent windows. A delay won't help.
+	SetWinDelay, 0
 	l := View_#%m%_#%v%_layout_#1
 	fn := Config_layoutFunction_#%l%
 	View_getTiledWndIds(m, v, wndIds)
 	View_arrange_%fn%(m, v, wndIds)
 	View_updateLayout(m, v)
 	Bar_updateLayout(m)
+	SetWinDelay, 10
 }
 
 View_getTiledWndIds(m, v, ByRef tiledWndIds) {