Text messages I send are arriving split into many small texts, why ?

douglasl

    Text messages I send are arriving split into many small texts, why ?  I have a t mobile Galaxy S8, and when I text to a Sprint iPhone, and a Verizon Android (not sure which), my text message, say a moderate length (not near the 1000 char max but longer than the 160 char SMS size), or even shorter, will arrive in many small texts, and often not in order.  This started this past Friday, with virtually every text I send of any length at all.   Not seeing this problem to AT&T iPhones.  Also, if I send a pretty long text, say 750+/- characters, to the Verizon phone, as of Friday, it's not getting there at all.  Any ideas ?  Did I somehow do something to my phone settings ?  I cleared the messaging (I used the default text messaging app) app cache, and also the system cache, neither of which made any difference.

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