iMessage locking up iOS 16.3.1
In the past 4 weeks my iMessage has been locking up. If I force quit (swipe up and up again) then shut down my iPhone 12 Pro and restart, iMessage will work again but never more than 10 minutes or so. The only think I know of that has changed is I installed Wreckfest racing game - but I deleted it and restarted again and iMessage still locks up. I will usually let me go into the conversations but when I click on the text area to type, it locks up. In 30 seconds it crashes out to the home screen.
By 'locks up' I mean the iMessage app only. I can swipe up and use the phone as normal but iMessage isn't working.
Is there a way to clear the cache or is this an issue that might require a complete wipe and restore? It's to the point where I can't really use the phone anymore for business use.