Playlists with similar IDs can cause caching conflicts. Add the shortcode setting “feedid” to set the name of the cache explicitly and fix the conflict. For example:
[youtube-feed type="playlist" playlist="PLLLm1a2b3c4D6g7i8j9k_1a2b3c4D57i8j9k" feedid="alaska"]
[youtube-feed type="playlist" playlist="PLLLm1a2b3c4D6g7i8j9k_1a2b3c4D57i8j8k" feedid="hawaii"]
