@RobeOfTheMagi Happens to me on my iMac too. It’s an annoying, untidy thing, but not a problem in itself. It won’t damage your HDD.
It has to do with how the energy saving settings on your mac work. The usb-C interface loses power when the machine sleeps and the HDD loses the connection.
You can fiddle with the energy saving settings and it might help, but likely at the expense of increased electricity consumption and possibly the lifetime of your MacBook.







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You’ll scare me off