A patch would only be released it this was a user-wide problem. It isn't. I suggest the problem is on your phone or its settings.
First try a Forced restart
Force restart iPhone – Apple Support (UK)
If no better
Backup, restore to factory,  and   test, then restore from backup:-Â
(If the phone needs attention you will have to do this anyway)
If you can import your media to Photos or iTunes in a computer and copy important documents to a cloud server it will give you some resilience in case the restore from backup fails, or you need to ditch the backup and start as new.Â
(1)Â Â Â Â Â Â Â Â Â Â How to back up your iPhone, iPad, and iPod touch - Apple Support
(2)Â Â Â Â Â Â Â Â Â Â Restore your iPhone, iPad, or iPod to factory settings - Apple Support
(3)Â Â Â Â Â Â Â Â Â Â Restore your iPhone, iPad, or iPod touch from a backup - Apple Support
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If the problem remains then do step (2) again but set up as new without restoring any backup.
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 If it fixes it then it is probably a rogue app.
Otherwise arrange a repair
iPhone Service & Repair - Apple Support