Thanks for the quick reply!
I double checked and it wasn’t a mistake in language selection. I actually deleted and re-created the new page a couple of times to test this and the error persisted. I’ll see if the error repeats with other languages and get back to you if it does.
In the meantime, I’ve found a (somewhat hacky) solution: I changed the regional variants “pt-PT” and “pt-BR” to “pt”. We’re not planning on doing regional targeting so losing these two variants is not a problem for now, and I can always restore to default if needed.
On RTL, you’re correct. I ticked all the new languages to mark them and forgot to undo it.
