iOS 15 - Text entry selection/replace glitch?

Hey there, TheRevGuy!

Thanks for reaching out to the Apple Support Communities! It sounds like you are having an issue with your screen seeming jumpy. There are a few recommendations we'd suggest based on what you've described. Go through the following steps one at a time, testing between each to see if the issue is resolved:

1. Force close any open apps: How to force an app to close on your iPhone, iPad, or iPod touch then Restart your iPhone.
2. Check for, and install, any available updates for your apps by opening the App Store and selecting Updates from the menu across the bottom.
3. Remove any third party keyboards you may have installed: About the keyboards settings on your iPhone, iPad, and iPod touch.

We look forward to hearing how it goes. Please keep us posted and good luck!

Thanks for keeping us posted!

The issues you are experuiencing are unexpected so feedback might not be the best option. At this point, it would be a good idea to be sure there is not a software issue as the root cause of this for you.

• Check out this article for the steps for How to back up your iPhone, iPad, and iPod touch.
• Use this article for the steps to Restore your iPhone, iPad, or iPod to factory settings.
• Set the device up as new and test to see if the issue is still going on.
• Follow this article to Restore your iPhone, iPad, or iPod touch from a backup

We patiently await your results!

You can report bugs using the feedback link, however it does not give you a personal response. Go to https://www.apple.com/feedback/iphone/ and select Bug Report under Feedback Type.