May I please piggy-back on this question as I have the same trouble? I tried to flash Linux Mint and I tried various sources from this site Linux Mint 22.1 "Xia" - Linux Mint for the download, and any seem to give this error:
Something went wrong while opening /Users/Kai/Downloads/linuxmint-22.1-xfce-64bit.iso.
Error: (0 , h.requestMetadata) is not a function
It also occurs regardless whether I download the file first or enter the link directly in balena etcher. For starters, I do not know what the error means.
hope you can access this ok. and thanks so much for offering to help. You will notice one other person will be tracking our success. this iso file was sum checked for integrity.