Video missing from exported file in Adobe Media Encoder

I am trying to export a project from AE into ME for rendering. The project consists of a video file with chromakey effects applied to it over a background image. The preview in AE shows no issues but when the project is rendered in ME (the export format is H264 for an mp4), the background image is there and so is the audio for the video but no actual video. I attempted various solutions including clearing my media cache and changing settings but no avail. I've been working on this project for far too long and need to get it out. Thank you! I'm using AE and ME 2021.