diff --git a/ui/frontend/src/lib/active-view/map.svelte b/ui/frontend/src/lib/active-view/map.svelte
index e0de5b2..316864f 100644
--- a/ui/frontend/src/lib/active-view/map.svelte
+++ b/ui/frontend/src/lib/active-view/map.svelte
@@ -227,9 +227,18 @@ preference the store already manages.
 		const sameSnapshot =
 			mountedTurn === report.turn &&
 			mountedGameId === gameId &&
-			handle !== null &&
-			handle.getMode() === mode;
+			handle !== null;
 		if (sameSnapshot) {
+			// Apply wrap-mode flips in-place via the renderer's own
+			// `setMode` — a full re-mount is unnecessary (the world,
+			// primitives, and camera are unchanged) and Pixi 8 does
+			// not reliably re-init on the same canvas (the symptom is
+			// a crashed tab when the wrap-mode radio fires).
+			if (handle !== null && handle.getMode() !== mode) {
+				untrack(() => {
+					handle?.setMode(mode);
+				});
+			}
 			// Always re-apply hide set + fog on a same-snapshot pass:
 			// toggle flips bypass the extras fingerprint when they
 			// only change which baked-world primitives are hidden,