H.264 render doesn't match with the AE preview

Hello!

I've been having an issue with AME where the render is very off from the preview in AE. I will have my video edited just the way I want it, but then when the render is completed, the final product is completely off from the preview. I'm simply adding captions to a very short video (under two minutes), but the words are off from the audio every time. I've tried restarting my computer and closing out the programs and changing a few things in the edit, but nothing is working. I think perhaps the visual got sped up where the audio stayed the same? Any help would be greatly appreciated, thank you.