Hey Mint, Mystery numbers usually generate within the filename while downloading said file. If they’re still there, it likely indicates an incomplete/partial or in-progress download. I am unable to replicate the error. Have you tried completing an uninterrupted download of the Windows zip yet?
I made several attempts at a download to see if the results would repeat. They did until I made another attempt just now. The file downloaded quickly and when I opened it and checked it with Winrar the errors were completely absent, the file appeared to have everything it needed. I then unzipped, booted the game up, and played as normal. I think at least for windows the issues have passed, and I haven't seen any signs of file corruption.