Hello gnjmitchell,
That would be a great question for the developer of this app. If this is happening in the Facebook Messenger app, then we'd recommend contacting the developer to discuss your next steps: How to contact an app developer They'll need to take it from here.
In case you meant the Messages app (the Apple app), is this happening with iMessage and text messages? Which iOS version are you using exactly? Does it only happen when receiving from a specific sender? As this information will up us to move forward towards a solution.
Wishing you well, take care.