I've had this ongoing problem with my phone for quite a while (iOS 17.1.2, though it happened with iOS 16 as well), and I'm wondering if anyone knows how to fix it.
My phone corrects or changes a word two or three words back. For example, if I type "drop off prescription," it's correct after I type "drop off," but once I've typed "prescription," it changes the entire phrase to "stop of prescription." Or if I type "thank [name]" (as a reminder to myself), it's correct after I type "thank", but once I've typed the name it changes it to "thanks [name]".
I've tried turning off a bunch of settings related to autocorrection, but I haven't found the right setting yet.