Unable to Upload GIF or MOV to Virtual Background

[Sophie4]

Hello, there. I have been converted my short videos to a GIF and an MOV file. I tried to set them as my virtual background, but every time I do so, “Unable to upload. Format not supported,” shows up. I have also tried converted my videos to the MP4 format, but to no avail. I tried doing this on my MacBook, Windows PC, and even on my iPad—none of them worked for me. Please help.