Texts not received when I send them

Moto X4
My Choice Talk & Text (no data)

In the last two days I have had two separate instances where a text message that I sent to a colleague was not received. One message was sent at 10:34 am MST on 9/9/2020 and was not received at all. The other text message was sent from my phone to an iPhone at 7:22 am MST on 9/8/2020. The text to the iPhone appeared in 3 segments on the iPhone and the second segment was missing entirely causing a significant miscommunication. Both of these individuals did receive a “test” text from me after identifying that a text was not received.

Both texts were sent on WiFi networks that I use regularly.

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