diff --git a/.roo/memory-bank/activeContext.md b/.roo/memory-bank/activeContext.md
index 3aa8929..0b8d7ec 100644
--- a/.roo/memory-bank/activeContext.md
+++ b/.roo/memory-bank/activeContext.md
@@ -2,12 +2,18 @@
 
 ## Task State
 
-- task_id: TASK-404
+- task_id: TASK-F14
 - status: success
-- parent_task: —
-- summary: **404 для несуществующих URL — SSR + nginx + frontend router.**
+- parent_task: TASK-F12, TASK-F13
+- summary: **Карта тренировки: одиночные метки фото не пропадают при сбросе участка (v-memo + стабильные :settings), метки центрированы на GPS-точках, клик по треку — поиск ближайшей точки (радиус 40 м).**
 - next task: — (no active tasks)
 
+### TASK-F12/F13/F14 — фиксы карты тренировки (WorkoutItem.vue)
+
+- Ф12: `position="top-center left-center"` (центрирование маркера на координате); `findNearestTrackIndex` (радиус 40 м) вместо точного lookup `getKey`/`coordWithIndex`.
+- Ф13: стабильные `:settings` фото-маркеров через Map-кэш (`getPhotoMarkerSettings`) — одного этого оказалось НЕДОСТАТОЧНО (Vue патчит VNode-ы и при неизменённых пропсах).
+- Ф14: `v-memo="[photo.id]"` на фото-маркерах — жёсткий пропуск патча, `onUpdated`/`clearElement()` больше не срабатывают. Методология и причины записаны в `systemPatterns.md` (секция «Charts & maps»).
+
 ## TASK-404: HTTP 404 для несуществующих страниц (SEO)
 
 ### Проблема
diff --git a/.roo/memory-bank/systemPatterns.md b/.roo/memory-bank/systemPatterns.md
index 4e58fce..229ae03 100644
--- a/.roo/memory-bank/systemPatterns.md
+++ b/.roo/memory-bank/systemPatterns.md
@@ -66,6 +66,8 @@ Dependency direction: `pages -> components/stores/services`. Pages own business
 - Yandex Maps via `vue-yandex-maps` (`createYmaps` with a hardcoded API key in `main.ts`). Route polyline drawn from workout `results` coordinates.
 - **Typing contract (since vue 3.5 strict checks)**: `vue-yandex-maps` `:settings` coordinates must be the `LngLat = [lon, lat, alt?]` tuple type — plain `number[]` refs fail `vue-tsc`. Pattern: `ref<LngLat>([lon, lat])` + `as LngLat` casts in templates (see `pages/routes/Route.vue`, `pages/workouts/components/WorkoutItem.vue`).
 - Custom chart controllers extend `chart.js` controllers (`LineWithLineController` in `LineWithLineChart.ts`); the map-sync plugin is read from `chart.config.plugins` by id — use non-null assertions on `chart.config.data!` (do NOT reintroduce `@ts-ignore`, lint bans it).
+- **Custom markers inside `YandexMapClusterer` disappear after any parent re-render** (e.g. selecting/clearing a track section). Root cause: a change of any reactive ref used in the template (like `clickCoordinates`, `mapX`) re-renders the template -> Vue patches every child `YandexMapMarker` VNode -> the component's `onUpdated` hook (vue-yandex-maps dist, `YandexMapMarker` setup, `clearElement()`) removes the marker DOM node, because at that moment the node is owned by the clusterer and no longer sits inside `<ymaps>` -> the clusterer's next render reuses the SAME `YMapMarker` entity (matched by id) and never recreates its element -> the single marker stays invisible until page reload. Clusters ("2+") are immune: `YandexMapClustererCluster.updateElement()` imperatively removes and recreates its children on every update. **Fix (mandatory for any `v-for` marker inside a clusterer):** (1) `v-memo="[item.id]"` on the marker element — Vue skips the VNode patch when memo deps are unchanged, so `onUpdated` never fires; (2) `:settings` from a stable per-id cache (`Map<string, { coordinates, onClick }>` built in setup) — a fresh inline `:settings="{...}"` is a new object reference each render and also trips the component's deep settings watcher -> `entity.update()` racing the clusterer. Reference: `pages/workouts/components/WorkoutItem.vue` (photo markers, TASK-F12/F13/F14). Side note: a custom marker `position` prop is a transform — `"bottom-center"` = `translate(0%, 50%)` shifts the badge DOWN from the GPS point; use `"top-center left-center"` = `translate(-50%, -50%)` to center the content exactly on the coordinates.
+- **Map track-point click: never match a raw click to track nodes by exact key** (e.g. rounded-to-3-decimals `Map` lookup — a ~100 m grid a click almost never hits); the "reset on miss" fallback then fires on every click and the selected section markers vanish. Use nearest-point search with a radius (`findNearestTrackIndex`, equirectangular: `dx = Δlng * 111320 * cos(midLatRad)`, `dy = Δlat * 110540`, radius ~40 m) and push the REAL track point (`lineCoordinates[i]`) into `clickCoordinates`, not the raw click coords (snap). Reset stays only for a genuine miss (beyond radius) or the second click (toggle).
 
 ## Styling