Texts transferred from Android not loading

Hi. I just switched from an android (an LG G7) and I used the transfer to IOS android app to move over my text messages. But many of the text threads are not loading in the messages app. See the photos below. I have good internet where I am. Also not every contact/thread has this problem. If it means anything, all three of these people also have iPhones. But the messages it is struggling to load are all SMS because they came from android. Even new messages I’ve sent after switching are not loading in the thread. What do I do?