I can’t post a video however when I press down on the left side toilet button, it makes a squeaky noise/funny noise? Almost a creaky noise. Hard to describe. Left side/smaller button.

The button is still functional and works, toilet still flushes fine etc. just wondering if there is anything I can try to stop this noise? Super frustrating when flushing the toilet! I did spray canola oil spray (suggestion from my mum!) on the buttons but that hasn’t helped. I wondered if like WD40 or similar would help? It doesn’t get caught or isn’t hard to press. Just makes an annoying noise!