diff --git a/.changeset/tiny-loops-wonder.md b/.changeset/tiny-loops-wonder.md
new file mode 100644
index 000000000000..49ac92947c61
--- /dev/null
+++ b/.changeset/tiny-loops-wonder.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: ensure each block animations don't mess with transitions
diff --git a/packages/svelte/src/internal/client/dom/blocks/each.js b/packages/svelte/src/internal/client/dom/blocks/each.js
index 320c0346902c..6e538f8f2177 100644
--- a/packages/svelte/src/internal/client/dom/blocks/each.js
+++ b/packages/svelte/src/internal/client/dom/blocks/each.js
@@ -394,8 +394,12 @@ function reconcile(state, array, anchor, flags, get_key) {
 			key = get_key(value, i);
 			item = /** @type {EachItem} */ (items.get(key));
 
-			item.a?.measure();
-			(to_animate ??= new Set()).add(item);
+			// offscreen == coming in now, no animation in that case,
+			// else this would happen https://github.com/sveltejs/svelte/issues/17181
+			if (item.o) {
+				item.a?.measure();
+				(to_animate ??= new Set()).add(item);
+			}
 		}
 	}