diff --git a/docs/content/2.concepts/1.how-it-works.md b/docs/content/2.concepts/1.how-it-works.md
index 5c32c78..4bd8454 100644
--- a/docs/content/2.concepts/1.how-it-works.md
+++ b/docs/content/2.concepts/1.how-it-works.md
@@ -56,26 +56,16 @@ Sources should respect `cap` to keep memory bounded — `RelatedActivityLogSourc
 
 ## Type taxonomy
 
-::callout{icon="i-lucide-alert-triangle" color="warning"}
-**Two distinct "type" axes exist. Do not confuse them.**
+The **entry-type** axis (`$entry->type`) and the **source-priority config** axis (`source_priorities` keys) align one-to-one:
 
-The **entry-type** axis (`$entry->type`) has **3 values today**:
+| Source                     | `$entry->type`         | `source_priorities` key  |
+| -------------------------- | ---------------------- | ------------------------ |
+| `ActivityLogSource`        | `activity_log`         | `activity_log`           |
+| `RelatedActivityLogSource` | `related_activity_log` | `related_activity_log`   |
+| `RelatedModelSource`       | `related_model`        | `related_model`          |
+| `CustomEventSource`        | `custom`               | `custom`                 |
 
-- `activity_log`
-- `related_model`
-- `custom`
-
-The **source-priority config** axis (`source_priorities` config keys) has **4 keys**:
-
-- `activity_log`
-- `related_activity_log`
-- `related_model`
-- `custom`
-
-Critically: RelatedActivityLogSource emits entries with `type='activity_log'` (**not** `'related_activity_log'`). Filtering with `->ofType(['related_activity_log'])` will never match anything. To distinguish own-log entries from related-log entries today, inspect `$entry->relatedModel` (it's `null` for `ActivityLogSource` entries and an Eloquent model for `RelatedActivityLogSource` entries) after calling `->get()` — there is no builder-level filter for source-of-origin.
-
-See [/troubleshooting](/troubleshooting) ("Type filter doesn't match anything") and [issue #11](https://github.com/relaticle/activity-log/issues/11).
-::
+To match both spatie-log sources in a filter, pass both keys: `->ofType(['activity_log', 'related_activity_log'])`. The built-in `ActivityLogRenderer` is auto-registered for both types, so diff rendering works for own-log and related-log entries without extra wiring.
 
 ## Source priorities
 
diff --git a/docs/content/3.essentials/1.sources.md b/docs/content/3.essentials/1.sources.md
index c4ddf1f..7021977 100644
--- a/docs/content/3.essentials/1.sources.md
+++ b/docs/content/3.essentials/1.sources.md
@@ -53,7 +53,7 @@ For each named relation, the source loads the related rows, then queries `activi
 ::
 
 ::callout{icon="i-lucide-info" color="info"}
-Entries from this source carry `type='activity_log'`, **not** `'related_activity_log'`. The `related_activity_log` key only exists in `config('activity-log.source_priorities')` for priority configuration. See the type taxonomy in [/concepts/how-it-works](/concepts/how-it-works#type-taxonomy).
+Entries from this source carry `type='related_activity_log'` and dedup-collide with the matching `RelatedModelSource` event when both fire at the same second. The built-in `ActivityLogRenderer` is auto-registered for both `activity_log` and `related_activity_log`, so spatie diffs render automatically for related-model logs too.
 ::
 
 ## `fromRelation(string $relation, Closure $configure)`
diff --git a/docs/content/3.essentials/2.filament-ui.md b/docs/content/3.essentials/2.filament-ui.md
index bd7c22a..4f91085 100644
--- a/docs/content/3.essentials/2.filament-ui.md
+++ b/docs/content/3.essentials/2.filament-ui.md
@@ -146,7 +146,7 @@ Each filter mutates the underlying `Relaticle\ActivityLog\Timeline\TimelineBuild
 A `resetFilters()` Livewire action is wired to the clear button — it nulls all three properties and rewinds `visibleCount` to `perPage`.
 
 ::callout{icon="i-lucide-info" color="info"}
-The `typeFilter` value is matched against `$entry->type`, so only the three real entry-type values resolve (`activity_log`, `related_model`, `custom`). Filtering by `'related_activity_log'` matches nothing — see the type taxonomy in [/concepts/how-it-works](/concepts/how-it-works#type-taxonomy).
+The `typeFilter` value is matched against `$entry->type`. Built-in types: `activity_log`, `related_activity_log`, `related_model`, `custom`. See the type taxonomy in [/concepts/how-it-works](/concepts/how-it-works#type-taxonomy).
 ::
 
 For programmatic equivalents — pre-applying filters from PHP rather than the URL — see [/essentials/refining-the-timeline](/essentials/refining-the-timeline).
diff --git a/docs/content/3.essentials/3.refining-the-timeline.md b/docs/content/3.essentials/3.refining-the-timeline.md
index c855655..4826212 100644
--- a/docs/content/3.essentials/3.refining-the-timeline.md
+++ b/docs/content/3.essentials/3.refining-the-timeline.md
@@ -34,8 +34,8 @@ $record->timeline()
 
 Type and event filters are mirrored onto every source's `Window` so sources can push them into SQL where possible. The builder also re-applies them post-yield as a safety net, so a source that ignores the `Window` filters still produces correct output.
 
-::callout{icon="i-lucide-alert-triangle" color="warning"}
-**There are only three entry types today: `activity_log`, `related_model`, `custom`.** Entries from `RelatedActivityLogSource` carry `type='activity_log'` — calling `->ofType(['related_activity_log'])` will silently match nothing. See the [type taxonomy](/concepts/how-it-works#type-taxonomy) for the full breakdown.
+::callout{icon="i-lucide-info" color="info"}
+**Built-in entry types: `activity_log`, `related_activity_log`, `related_model`, `custom`.** `ActivityLogSource` emits `activity_log`; `RelatedActivityLogSource` emits `related_activity_log`. To match both spatie-log sources, pass both keys: `->ofType(['activity_log', 'related_activity_log'])`. See the [type taxonomy](/concepts/how-it-works#type-taxonomy).
 ::
 
 ## Sorting
diff --git a/docs/content/3.essentials/6.configuration.md b/docs/content/3.essentials/6.configuration.md
index 3238580..93ed3ef 100644
--- a/docs/content/3.essentials/6.configuration.md
+++ b/docs/content/3.essentials/6.configuration.md
@@ -18,7 +18,7 @@ Every knob the package exposes lives in `config/activity-log.php`. Publish it wi
 | `pagination_buffer` | `int` | `2` | Per-source over-fetch multiplier: `cap = perPage × (page + buffer)`. See [/essentials/refining-the-timeline#pagination-buffer-mechanics](/essentials/refining-the-timeline#pagination-buffer-mechanics). |
 | `deduplicate_by_default` | `bool` | `true` | Builder dedup default; overridable per-call via `->deduplicate(false)`. |
 | `source_priorities.activity_log` | `int` | `10` | Priority for `ActivityLogSource`. |
-| `source_priorities.related_activity_log` | `int` | `10` | Priority for `RelatedActivityLogSource`. **Note**: priority key only — entries from this source carry `type='activity_log'`, NOT `'related_activity_log'`. See [/concepts/how-it-works#type-taxonomy](/concepts/how-it-works#type-taxonomy). |
+| `source_priorities.related_activity_log` | `int` | `10` | Priority for `RelatedActivityLogSource`. Entries from this source carry `type='related_activity_log'`. |
 | `source_priorities.related_model` | `int` | `20` | Priority for `RelatedModelSource`. |
 | `source_priorities.custom` | `int` | `30` | Priority for `CustomEventSource`. |
 | `renderers` | `array` | `[]` | Event-or-type → renderer map. See [/essentials/customization#registration-channels](/essentials/customization#registration-channels). |
diff --git a/docs/content/6.troubleshooting/1.index.md b/docs/content/6.troubleshooting/1.index.md
index e4972b6..e5256dc 100644
--- a/docs/content/6.troubleshooting/1.index.md
+++ b/docs/content/6.troubleshooting/1.index.md
@@ -22,13 +22,14 @@ Renderers resolve in this order: explicit `$entry->renderer` → `bindings[$entr
 
 Dedup uses `dedupKey` + `sourcePriority`. If two sources emit the same logical event with different keys, they won't collapse. Either align `dedupKey` on both sources (use `->dedupKeyUsing()` on the builder) or raise the preferred source's priority so the loser is dropped. Mechanics at [/concepts/how-it-works#dedup-behavior](/concepts/how-it-works#dedup-behavior).
 
-## Type filter doesn't match anything
+## Cache invalidation flushed unrelated caches
 
 ::callout{icon="i-lucide-alert-triangle" color="warning"}
-- **Symptom:** `$record->timeline()->fromActivityLogOf(['emails'])->ofType(['related_activity_log'])->get()` returns empty.
-- **Cause:** `RelatedActivityLogSource` emits entries with `type='activity_log'` (NOT `'related_activity_log'`). The `related_activity_log` key only exists in `source_priorities` config — for priority configuration only.
-- **Workaround:** filter with `->ofType(['activity_log'])` to include both own- and related-log entries. To distinguish them at the entry level, inspect `$entry->relatedModel` (`null` for `ActivityLogSource`, an Eloquent model for `RelatedActivityLogSource`).
-- **Tracking:** [issue #11](https://github.com/relaticle/activity-log/issues/11).
+- **Symptom:** after calling `$record->forgetTimelineCache()`, sessions / queue locks / application caches are gone too.
+- **Cause:** `TimelineCache::forget()` calls `Cache::store(...)->getStore()->flush()` — flushes the entire cache store, not just this subject's keys.
+- **Workaround:** configure `cache.store` to a dedicated Laravel cache store used only by the timeline. Or skip explicit invalidation and let TTL expire naturally (set a short `->cached($ttl)`).
+- **Tracking:** [issue #12](https://github.com/relaticle/activity-log/issues/12).
+- Full caveat at [/essentials/caching#invalidation--known-limitation](/essentials/caching#invalidation--known-limitation).
 ::
 
 ## `fromActivityLog()` throws on a fresh model
diff --git a/src/ActivityLogServiceProvider.php b/src/ActivityLogServiceProvider.php
index d7a7c77..1346f08 100644
--- a/src/ActivityLogServiceProvider.php
+++ b/src/ActivityLogServiceProvider.php
@@ -31,7 +31,8 @@ public function packageBooted(): void
     {
         Livewire::component('activity-log', Filament\Livewire\ActivityLogLivewire::class);
 
-        $this->app->make(RendererRegistry::class)
-            ->register('activity_log', Renderers\ActivityLogRenderer::class);
+        $registry = $this->app->make(RendererRegistry::class);
+        $registry->register('activity_log', Renderers\ActivityLogRenderer::class);
+        $registry->register('related_activity_log', Renderers\ActivityLogRenderer::class);
     }
 }
diff --git a/src/Timeline/Sources/RelatedActivityLogSource.php b/src/Timeline/Sources/RelatedActivityLogSource.php
index 98950ea..9ecd593 100644
--- a/src/Timeline/Sources/RelatedActivityLogSource.php
+++ b/src/Timeline/Sources/RelatedActivityLogSource.php
@@ -82,7 +82,7 @@ private function makeEntry(Model $subject, ActivityModel $activity, Model $relat
 
         return new TimelineEntry(
             id: sprintf('related_activity_log:%s:%s', $activity->id, $event),
-            type: 'activity_log',
+            type: 'related_activity_log',
             event: $event,
             occurredAt: $occurredAt,
             dedupKey: $this->dedupKeyFor($relatedModel::class, (string) $relatedModel->getKey(), $occurredAt),
diff --git a/tests/Feature/BuilderDedupTest.php b/tests/Feature/BuilderDedupTest.php
index 620d39f..45eb5e8 100644
--- a/tests/Feature/BuilderDedupTest.php
+++ b/tests/Feature/BuilderDedupTest.php
@@ -46,7 +46,7 @@
         ->get();
 
     expect($entries)->toHaveCount(1)
-        ->and($entries->first()->type)->toBe('activity_log');
+        ->and($entries->first()->type)->toBe('related_activity_log');
 });
 
 it('dedupKeyUsing() overrides the per-entry dedup key', function (): void {