Release issues

[tracker12]

I have noticed that at times my arrows tail(feather) end is pointing left when in the target.  In a properly spinned arrow what release issue would cause this.

[reddogge]

A left nock would indicate a weak arrow but that is usually bareshaft. Feathers generally will correct a slightly weak arrow. Do they fly with a nock left attitude or waggle going downrange? Usually my bad releases don't affect arrow flight, only where the arrow hits.

[tracker12]

I'm taking when the arrow is sticking in the target.  Flight seems fine but if I am bailing close I sometimes get the feathers leaning left.  There not impacting left though.  At 15-20 yards it is not as noticeable.  Figured fletching may be correcting.