Callback hooks don't always register properly

[TommyB123]

We spoke about this on discord a few days ago, but after experiencing the issue again I felt it would be better to bring it up as an issue here. I've noticed that callback hooks have a high chance of not working at all. It seems to happen at random and restarting the server a bunch will see a single hook working eventually, but not every hook. Hooks all work at random with varying levels of consistency and success, and a fix for this would be very appreciated!

Not sure what further information I can give, but if you need anything else like a brief code example I'll be happy to provide it.