Just put together a brand new single speed fixie style bike. There is a skipping or catch motion when the bike is upside down (on the seat and handle bars) and I'm pedalling the crank and then stop and let the back tire spin (free wheel motion). I'm guessing that in that position once I stop spinning the pedals connected to the crank arm should just be still while the back tire is spinning.
What is happening is that the crank arm/pedal acts like it catches on something and moves and then stops and then catches again, moves and then stops when the back bike tire is spinning. It doesn't seem normal, especially because it's a new bike.
Also I only took around the block to test drive and it seems when I stop pedalling it hold my feet on the pedals in a 3 o'clock / 9 o'clock position there is a clicking or catching sound happening there as well. When pedalling the bike feels normal.
Here is a short 8 second video of the skipping when the bike is upside down on the seat and handle bars
What do you think may be the issue? Any help would be greatly appreciated!