I thought something was wrong with my PlusD disk interface so I took it apart for inspection… and who would’ve guessed it, the problem was just a duff floppy disk! 😩🥴😛💾💾💾
It’s never given me any trouble to be honest, it’s easily one of my favourite Spectrum accessories.
(I’ve no idea why I didn’t immediately suspect the well-used second-hand disk I got in a job lot from eBay!)