diff --git a/src/AnimeClient/API/Kitsu/Transformer/HistoryTransformer.php b/src/AnimeClient/API/Kitsu/Transformer/HistoryTransformer.php
index 625c6a61..d32320f7 100644
--- a/src/AnimeClient/API/Kitsu/Transformer/HistoryTransformer.php
+++ b/src/AnimeClient/API/Kitsu/Transformer/HistoryTransformer.php
@@ -162,7 +162,7 @@ abstract class HistoryTransformer {
 		$data = $entry['relationships'][$this->type][$id]['attributes'];
 		$title = $this->linkTitle($data);
 		$imgUrl = "images/{$this->type}/{$id}.webp";
-		$item = max($entry['attributes']['changedData']['progress']);
+		$item = array_pop($entry['attributes']['changedData']['progress']);
 
 		return HistoryItem::from([
 			'action' => "{$this->progressAction} {$item}",
diff --git a/src/AnimeClient/Model/AnimeCollection.php b/src/AnimeClient/Model/AnimeCollection.php
index 0b70f3c2..53a7332f 100644
--- a/src/AnimeClient/Model/AnimeCollection.php
+++ b/src/AnimeClient/Model/AnimeCollection.php
@@ -134,6 +134,8 @@ final class AnimeCollection extends Collection {
 
 		$id = $data['id'];
 		$anime = (object)$this->animeModel->getAnimeById($id);
+
+		$this->db->beginTransaction();
 		$this->db->set([
 			'hummingbird_id' => $id,
 			'slug' => $anime->slug,
@@ -150,6 +152,8 @@ final class AnimeCollection extends Collection {
 		$this->updateMediaLink($id, $data['media_id']);
 
 		$this->updateGenres($id);
+
+		$this->db->commit();
 	}
 
 	/**
@@ -193,6 +197,8 @@ final class AnimeCollection extends Collection {
 		$media = $data['media_id'];
 		unset($data['hummingbird_id'], $data['media_id']);
 
+		$this->db->beginTransaction();
+
 		// If updating from the 'add' page, there
 		// might be no data to actually update in
 		// the anime_set table
@@ -206,6 +212,8 @@ final class AnimeCollection extends Collection {
 		// Update media and genres
 		$this->updateMediaLink($id, $media);
 		$this->updateGenres($id);
+
+		$this->db->commit();
 	}
 
 	/**
@@ -264,11 +272,18 @@ final class AnimeCollection extends Collection {
 			return;
 		}
 
+		$this->db->beginTransaction();
+
 		$this->db->where('hummingbird_id', $data['hummingbird_id'])
 			->delete('genre_anime_set_link');
 
+		$this->db->where('hummingbird_id', $data['hummingbird_id'])
+			->delete('anime_set_media_link');
+
 		$this->db->where('hummingbird_id', $data['hummingbird_id'])
 			->delete('anime_set');
+
+		$this->db->commit();
 	}
 
 	/**