Was Fifth Harmony left out of Camila's birthday bash?

Taylor Swift threw pal Camila Cabello a mega 18th b-day bash with a bunch of A list guests like Selena Gomez and Hailee Steinfeld, but four girls were noticeably absent: The rest of Fifth Harmony! " I personally know we didn't go to it, because we no idea that it was happening." Normani opens up about the party. "But yeah, I'm glad that she has good friends." Yikes!