There are several things that can cause the "hop".
One the blade is upside down
The blade is dull and is grabbing the wood
You are feeding the wood too fast
you are not holding the wood down to the table
The 2 most likely suspects are the upside down blade and feeding the wood too fast.
Try slowing your cutting a bit and making sure that your blade is right side up. A lot of the Flying Dutchman have a kink in the top end of the blade so that you can determine what way is up.
DW