I can't walk through the wheat

I was playing creative when I found I was having issues through the wheat and other garden plants. I would be pushed back and unable to walk through the wheat block. It happened with carrots, potatoes, beets, and wheat.

I took a video of it and tossed it up on my Youtube so you could see what the issue was.[link title|https://youtu.be/LXMPZhEN6N8]