I'm relatively new to After Effects. I'm building a short ad using a free template I downloaded. I then rendered the project using Adobe Media Encoder on the H.264 Youtube 1080p setting.
Unfortunately, I'm getting green and purple lines both on the left and right of the overall video, and along any high contrast edge within the video (particularly egregious with any letters). All the animated typography etc. is done within After Effects so there's no question of this being introduced from any of source materials like imported video clips etc.
I've attached a few different images showing this. Any ideas on what I can do to prevent this? A different codec, different settings in Adobe Media Encoder? Could it be a particular filter or color treatments within After Effects itself?
The effect makes the video hazy and adds an unappetizing tint to the borders of all the elements in the video :(.