--- a/transaction.c
+++ b/transaction.c
@@ -911,0 +912,2 @@
+static void probe_clip_enable_tiling(struct sway_workspace *ws, bool desired);
+
@@ -963 +965 @@
-			wlr_scene_node_set_enabled(&child->layers.tiling->node, !fs);
+			probe_clip_enable_tiling(child, !fs);
@@ -1009 +1011 @@
-					wlr_scene_tree_set_clip(child->layers.tiling, &clip);
+					if (!wlr_scene_tree_set_clip(child->layers.tiling, &clip)) return;
@@ -1011 +1013 @@
-					wlr_scene_tree_set_clip(child->layers.tiling, NULL);
+					if (!wlr_scene_tree_set_clip(child->layers.tiling, NULL)) return;
@@ -1013,0 +1016 @@
+				probe_clip_enable_tiling(child, true);
@@ -1024 +1027 @@
-			wlr_scene_node_set_enabled(&child->layers.tiling->node, true);
+			probe_clip_enable_tiling(child, true);
@@ -1035 +1038 @@
-			wlr_scene_node_set_enabled(&child->layers.tiling->node, false);
+			probe_clip_enable_tiling(child, false);
@@ -1042,0 +1046,10 @@
+}
+
+// WHY: fading-out also enables tiling without retrying clip installation.
+// CONTRACT: upstream decides desired visibility; absent mandatory clip vetoes it.
+// INVARIANT: false desired never becomes true; no OOM latch allocation is needed.
+static void probe_clip_enable_tiling(struct sway_workspace *ws, bool desired) {
+	struct wlr_box clip;
+	bool admitted = ws->current.layout != L_MOSAIC || !ws->mosaic ||
+		wlr_scene_tree_get_clip(ws->layers.tiling, &clip);
+	wlr_scene_node_set_enabled(&ws->layers.tiling->node, desired && admitted);
@@ -1098 +1111 @@
-		wlr_scene_tree_set_clip(popup_tree, NULL);
+		if (!wlr_scene_tree_set_clip(popup_tree, NULL)) return;
@@ -1106 +1119 @@
-			wlr_scene_tree_set_clip(popup_tree, NULL);
+			if (!wlr_scene_tree_set_clip(popup_tree, NULL)) return;
@@ -1114 +1127 @@
-		wlr_scene_tree_set_clip(popup_tree, NULL);
+		if (!wlr_scene_tree_set_clip(popup_tree, NULL)) return;
@@ -1125 +1138 @@
-		wlr_scene_tree_set_clip(popup_tree, &empty);
+		if (!wlr_scene_tree_set_clip(popup_tree, &empty)) return;
@@ -1133 +1146 @@
-		wlr_scene_tree_set_clip(popup_tree, &empty);
+		if (!wlr_scene_tree_set_clip(popup_tree, &empty)) return;
@@ -1144 +1157 @@
-		wlr_scene_tree_set_clip(popup_tree, &empty);
+		if (!wlr_scene_tree_set_clip(popup_tree, &empty)) return;
@@ -1165 +1178 @@
-		wlr_scene_tree_set_clip(popup_tree, &empty);
+		if (!wlr_scene_tree_set_clip(popup_tree, &empty)) return;
@@ -1178 +1191 @@
-		wlr_scene_tree_set_clip(popup_tree, &empty);
+		if (!wlr_scene_tree_set_clip(popup_tree, &empty)) return;
@@ -1183 +1196 @@
-	wlr_scene_tree_set_clip(popup_tree, &global);
+	if (!wlr_scene_tree_set_clip(popup_tree, &global)) return;