Hello, In iOS 13, when I click “i” in an iMessage scroll down to “see all photos” I am able to press and hold and select delete and easily delete each photo I no longer want in the attachment thread. However HEIC and HEIF photos refuse to delete from the thread the way the jpeg ones instantly delete for me. I’ve even tried going into delete large attachments under settings and have deleted them in the text itself, but nothing is working. I can’t get rid of them off my message attachment thread. Is this is a glitch in iOS 13? Or is there some way to permanently delete these photo files (HEIF and HEIC) from iMessage attachments? Thanks!