Frame animations not supported

I am trying to upload a file to fresco, and I have had this problem if the file contains any style at all, but this file has no styling or opacity or any changes. I tried even flattening my fonts which has never been a problem before. I even ripped out all the folders. I have copied and pasted everything into new files. Nothing is working. I saw the fix to check the frames, but it is only this. Thank you for the help!