Hey guys, I thought I’d jump in on the debate, I’ve been experiencing the same issue for a few weeks now (started after a software update for me as well) Here are some points if got from trying to figure out the issue:
1. (as was said earlier) changing the app language or the whole system language fixes the issue
2. Some apps still allow typing RTL correctly including Google Facebook (and even some apple ones like notes) it, however, does not work in other Apple apps, such as Safari (leading me to believe it is not a WhatsApp issue as much as an iOS issue)
3. I’m currently on the latest version available (17.2.1 at the time of writing) and still experiencing the issue
Please let me know if you guys somehow find a fix and I’ll make sure to do the same, Thanks