I'm experiencing an issue with insta-mining on my server, and it seems like other players are facing the same problem. The strange part is that this doesn't happen on other servers, so it's definitely something specific to ours.
It feels like there's a cooldown on pickaxes, similar to the one you get when attacking with a sword. I can’t figure out what might be causing it.
To help troubleshoot, I’ve attached a screenshot of our plugins and a video showing the issue: