Halp ma dudes. Neon blue outline on lossless .mov clips. Word.

[Thomas23641364kx67]

I've attached images of my prem and after effects timelines below. 

The prem one has the out of place, neon blue outline going down.

Happened very suddenly, after a draft export was completed. Annoyingly found a few changes and came back to this ugliness.

Any guesses or ideas? Have I missed something realllllly obvious that I'll feel foolish about?

[Peru Bob]

Are you using the Roughen Edges effect?

If so, check if a color is chosen.

[Thomas23641364kx67]

No additional effects have been placed on the Prem clip. 

The .mov file is imported and untouched essentially. 

[Kevin-Monahan]

Hi @Thomas23641364kx67,

See this discussion: https://community.adobe.com/t5/premiere-pro-discussions/blue-outline-appearing-around-text-alpha-lay...

Let us know if it helps.

Thanks,
Kevin

[Peru Bob]

Delete the Media Cache and Media Cache files:
https://community.adobe.com/t5/premiere-pro/faq-how-to-clear-your-media-cache-in-30-seconds-in-premi...

If that doesn't work, try resetting the preferences:
https://community.adobe.com/t5/premiere-pro/faq-how-to-reset-trash-preferences-in-premiere-pro/td-p/...

If that doesn't work, try resetting the Workspaces:
Reset a workspace
Reset the current workspace to return to its original, saved layout of panels.
1. Do one of the following:
• Click the Workspace menu icon and select Reset to Saved Layout.
• Choose Window > Workspace > Reset to Saved Layout.
from here:
https://helpx.adobe.com/premiere-pro/using/workspaces.html

If that doesn't work, try Preferences > Audio Hardware and set Input to None.

If that doesn’t work, try updating or rolling back your graphics driver directly from the video card manufacturer’s site. If NVIDIA, do a clean installation of the latest Studio Driver (NOT the Game Driver).

If that doesn't work, try creating a new project and import the old one into it.