I figured out that the problem is my expression within trapcode particular, i disabled it and it renders fine. The expression is for the physics time factor under physics on particular. The expression goes like this: (Its linked to sound keys) thisComp.layer(“Black Solid 2”).effect(“Sound Keys”)(“Output 1”) EDIT: its actually because of the expression which links to it (the sound keys one) which goes like this: linear(value,1,40,0.5,4.5) which basically indicated that when the audio is at a certain unity the output value will change, which links to particular to change this physics time factor