"How do I fix invisible text messages after iOS 26 update?: After upgrading my iPhone to IOS 26, when I am texting, the message is not visible to me. Is this a problem for anyone else?"
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Invisible Text Messages on an iPhone:
If my first reply does not work, the try the following.
A. Force Restart:
You say that you have restarted. But, have your Force Restated? Go Here: Force Restart iPhone - Apple Support
B. Rid of "System Data" (Formerly Called "Other"):
System Data is caches -- all of which gather overtime. They are created for apps so that they have a more ease use and quicker operability. Clearing them, you would fix a few bugs. See my User Tip: How to Clear "System Data" in your iPhone's Storage: - User TIp