Sometimes, when piloting a ship that hovers (anything but the biplane), the ship will just stop moving and hover, and will not move forward until the player unpresses and represses W and a few seconds pass. This can be skipped by hitting spacebar, which will ascend the ship slightly and allow movement again immediately. It happens more frequently when moving forward for a while, so it may be an issue with loading chunks causing the inputs to reset?

Does it happen while hovering, or can you move forward and it suddenly no longer reacts, slows down and then keeps hovering?

It only happens when holding down w for a bit. It just stops reacting to w unless you're holding space. It's actually happening a lot more than I thought it was, I was in my survival world earlier and it's kinda frequent. The ship just levels off and acts like you're not hitting any buttons.

Sorry for the delay!