diff --git a/CHANGELOG.md b/CHANGELOG.md
index 95b4820af..fb4dec539 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -86,6 +86,8 @@
 - Update ComposeModal, add Alt Text button to caption screen ([4db48188](https://github.com/pixelfed/pixelfed/commit/4db48188))
 - Update AccountService, fix actor cache invalidation ([498b46f7](https://github.com/pixelfed/pixelfed/commit/498b46f7))
 - Update SharePipeline, fix share handling and notification generation ([83e1e203](https://github.com/pixelfed/pixelfed/commit/83e1e203))
+- Update SharePipeline, fix ReblogService and undo handling ([016c6e41](https://github.com/pixelfed/pixelfed/commit/016c6e41))
+- Update AP Helpers, fix media validation bug that would reject media with alttext/name longer than 255 chars and store remote alt text if set ([a7f58349](https://github.com/pixelfed/pixelfed/commit/a7f58349))
 -  ([](https://github.com/pixelfed/pixelfed/commit/))
 
 ## [v0.11.4 (2022-10-04)](https://github.com/pixelfed/pixelfed/compare/v0.11.3...v0.11.4)
diff --git a/app/Jobs/SharePipeline/SharePipeline.php b/app/Jobs/SharePipeline/SharePipeline.php
index 2cc807acb..528c78ca2 100644
--- a/app/Jobs/SharePipeline/SharePipeline.php
+++ b/app/Jobs/SharePipeline/SharePipeline.php
@@ -63,7 +63,7 @@ class SharePipeline implements ShouldQueue
 			return true;
 		}
 
-		ReblogService::addPostReblog($parent->id, $status->id);
+		ReblogService::addPostReblog($parent->profile_id, $status->id);
 
 		$parent->reblogs_count = $parent->reblogs_count + 1;
 		$parent->save();
diff --git a/app/Jobs/SharePipeline/UndoSharePipeline.php b/app/Jobs/SharePipeline/UndoSharePipeline.php
index d63f909b3..6d39dfa39 100644
--- a/app/Jobs/SharePipeline/UndoSharePipeline.php
+++ b/app/Jobs/SharePipeline/UndoSharePipeline.php
@@ -37,7 +37,7 @@ class UndoSharePipeline implements ShouldQueue
 
 		if($parent) {
 			$target = $parent->profile_id;
-			ReblogService::removePostReblog($parent->id, $status->id);
+			ReblogService::removePostReblog($parent->profile_id, $status->id);
 
 			if($parent->reblogs_count > 0) {
 				$parent->reblogs_count = $parent->reblogs_count - 1;
diff --git a/app/Util/ActivityPub/Helpers.php b/app/Util/ActivityPub/Helpers.php
index 39e7a8bf2..5b18f7565 100644
--- a/app/Util/ActivityPub/Helpers.php
+++ b/app/Util/ActivityPub/Helpers.php
@@ -101,13 +101,13 @@ class Helpers {
 				'string',
 				Rule::in($mediaTypes)
 			],
-			'*.url' => 'required|url|max:255',
+			'*.url' => 'required|url',
 			'*.mediaType'  => [
 				'required',
 				'string',
 				Rule::in($mimeTypes)
 			],
-			'*.name' => 'sometimes|nullable|string|max:255'
+			'*.name' => 'sometimes|nullable|string'
 		])->passes();
 
 		return $valid;
@@ -665,12 +665,13 @@ class Helpers {
 		foreach($attachments as $media) {
 			$type = $media['mediaType'];
 			$url = $media['url'];
-			$blurhash = isset($media['blurhash']) ? $media['blurhash'] : null;
-			$license = isset($media['license']) ? License::nameToId($media['license']) : null;
 			$valid = self::validateUrl($url);
 			if(in_array($type, $allowed) == false || $valid == false) {
 				continue;
 			}
+			$blurhash = isset($media['blurhash']) ? $media['blurhash'] : null;
+			$license = isset($media['license']) ? License::nameToId($media['license']) : null;
+			$caption = $media['name'] ? Purify::clean($media['name']) : null;
 
 			$media = new Media();
 			$media->blurhash = $blurhash;
@@ -680,6 +681,7 @@ class Helpers {
 			$media->user_id = null;
 			$media->media_path = $url;
 			$media->remote_url = $url;
+			$media->caption = $caption;
 			if($license) {
 				$media->license = $license;
 			}
diff --git a/app/Util/ActivityPub/Inbox.php b/app/Util/ActivityPub/Inbox.php
index 6b6586433..7ea1eb8af 100644
--- a/app/Util/ActivityPub/Inbox.php
+++ b/app/Util/ActivityPub/Inbox.php
@@ -37,6 +37,7 @@ use App\Util\ActivityPub\Validator\UndoFollow as UndoFollowValidator;
 
 use App\Services\PollService;
 use App\Services\FollowerService;
+use App\Services\ReblogService;
 use App\Services\StatusService;
 use App\Services\UserFilterService;
 use App\Services\NetworkTimelineService;
@@ -602,6 +603,8 @@ class Inbox
 		$parent->reblogs_count = $parent->reblogs_count + 1;
 		$parent->save();
 
+		ReblogService::addPostReblog($parent->profile_id, $status->id);
+
 		return;
 	}
 
@@ -789,17 +792,23 @@ class Inbox
 				if(is_array($obj) && isset($obj['object'])) {
 					$obj = $obj['object'];
 				}
-				if(!is_string($obj) || !Helpers::validateLocalUrl($obj)) {
+				if(!is_string($obj)) {
 					return;
 				}
-				$status = Status::whereUri($obj)->exists();
+				if(Helpers::validateLocalUrl($obj)) {
+					$parsedId = last(explode('/', $obj));
+					$status = Status::find($parsedId);
+				} else {
+					$status = Status::whereUri($obj)->first();
+				}
 				if(!$status) {
 					return;
 				}
 				Status::whereProfileId($profile->id)
 					->whereReblogOfId($status->id)
-					->forceDelete();
-				Notification::whereProfileId($status->profile->id)
+					->delete();
+				ReblogService::removePostReblog($profile->id, $status->id);
+				Notification::whereProfileId($status->profile_id)
 					->whereActorId($profile->id)
 					->whereAction('share')
 					->whereItemId($status->reblog_of_id)