can't get canvas circle arc to animate properly with gsap

[rocketman97]

Hi everyone, I'm trying to follow a guide from this code pen i saw on this forum 

See the Pen wbxdJr by elegantseagulls (@elegantseagulls) on CodePen

 which is about using gsap to animate canvas elements. This works with rect but when using arc to construct circles it's neither clearing the previous frames and changing color or looping like the guide. I'm not sure what's going on.  please any suggestions?

See the Pen QWJJVoM by razorchoice (@razorchoice) on CodePen

[rocketman97]

no worries i got it to work, turns out i forgot to put parentheses in my  'ctx.beginPath()'