[Potential bug] Replies now take a few seconds to post?

I’ve noticed over the past two days (i.e. today and yesterday, can’t remember if this was happening two days ago) that when I tap reply to comments a loading circle appears and can stay there for a few seconds before the reply gets posted, when I’m pretty sure the reply would appear instantaneously previously and I don’t remember seeing a loading circle before.

Is this a bug? In the screenshot I posted I tapped reply once, nothing happened so I tapped it again a couple more times before the loading circle appeared and my reply posted 3 times 😣