Graphical Glitches & Other Odd Things

Cosmetic things that look kinda weird. The first one might just be my computer...

1. Sometimes the star field in the background will jolt backwards then forwards like time reversed briefly. Not sure if that actually effects how long night is but it's kinda weird.

2. If you have a wooden platform next to and one step below a farm block and you jump on the farm block with about the mid point of your body along the edge (one foot lands on the farm block) the sound effect that is played is the same as if you landed on the platform, not the farm block.

3. This one actually effects game play. If you have a tree that has grown on fine sand, and you knock out the fine sand under the tree, the entire tree disappears. I haven't been able to test if this always happens on account of the planet I found it on only had one tree growing in fine sand.

Anyone else find oddities like this?

Edit: Spelling Error