unable to reset spinning icon

[JD-V]

While data Loading process, by making iconObj.spin = true and providing spin duration, Icon starts spinning.
later at completion i am trying to replace spinning icon by check icon and making iconObj.spin = false. But check icon is getting displayed in random angles. and i am not able to reset that angle.

Attached images for reference, anyone can validate this, if there is a way to reset the angle please let me know.
(consider this as a spinning icon)