Exported video flickering with different clips, colors, diagonal lines

[Benjamin5E31]

Hey all! I'm new to Premiere but picked it up to work on a project with my music group. Working on a project with about 16 video tracks, the only effects i've applied are motion transformations to line everything up. It all looks fine in the preview window, until I try to Render In to Out, or do a full Media Export of the project; then, clips become superimposed on top of each other, strange colors appear, and diagonal lines flicker as well. See the video attached to see what I mean. I've tried restarting my computer as well as deleting the render files before re-rendering, to no avail. Any thoughts? Is this something wrong with the project or just my computer? (Is it worth sending the project to someone else to export?)

[Benjamin5E31 · Accepted solution]

As usual, I fixed this as soon as I posted it LOL. Sorry for the sorta-duplicate post, thought I'd gone through everything but apparently not!

If anyone else sees this, try turning off GPU Acceleration:

Open your project, click on File > Project settings > General and change video renderer to 'Software Only Mode' and delete previews.