overall happy F-Droid user here.
I’ve been using the Simple apps. line up from Tibor Kaputa, initially I was super happy with the overall lightweightness and design. But recently something very odd happened. I have 2 sim cards, each one is from a different country. Currently in the UK and all outgoing/incoming SMS texts from the UK # were fine. But when I used the sim from a different country on the same phone (dual sim) to text to another UK # the message always arrived from a completely unknown number, I’ve checked this by sending a text to myself and others. In one instance, when the other person replied to the number the message came from, the receiving party was just as confused. I’ve switched it back to Signal now and the whole problem is gone (using its unsecure sms messaging).
Has anyone else encountered this before? It was a totally first time for me, but I’m pretty worried now with this and with any other apps from the developer.
Thanks in advance to anyone who takes a look at this!