I’m using iPhone 7+ iOS 11.3 beta 3. However, I received an iMessage only double spaced and message crashed and I cannot viewing conversation because unexpectedly error shift me to main display, also I tried to send double space (1 times return) and send also message crashed so when you received/send double space you will directly shifted to main display I force restart but still I cannot view conversation so I deleted! Any help any idea, did you faced same issue?