My girlfriend and I both have Tercube phones running basically the same apps.
When we first opened the phones and set up all our contacts, Google messages prompted both of us to set up Chat so we could message over WiFi.
Over the last couple of days, I’ve noticed the chat box that pops up in the bottom corner says MMS and doesn’t show Chat, even when connected to WiFi. Trying to enable it in the settings gives the screen saying Chat features unavailable for this device.
I checked my girlfriend’s phone and she still has it enabled and connected.