OSMC installer fails on macOS Catalina 10.15.3

“An error occurred while writing the image! Please consult the logfile.”

MacBook Pro (13-inch, 2017) running MacOS Catalina 10.15.3
Works just fine on my older MacBook Pro running an older version of MacOS, possibly High Sierra).
Etcher doesn’t work either; it just hangs with the message “Verifying”.

Side comment: I have no idea what logfile is being referred to. There are many log files on MacOS, so the message is not very informative or helpful.

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Looking for a solution to the apparent installer problem, not a potential “workaround”. But thanks. (I may be forced to use the Terminal app but only as a last resort.)

Unfortunately I have no solution for this at this time, but it should be resolved within the next couple of weeks.

Sam

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Thanks, Sam. I appreciate your reply.

Same issue here on macOS 10.15.3.

As a workaround, I’m downloading the img file and flashing it with balenaEtcher.