Smooth Scrolling & WP 5.4 Error

Hi, I’ve recently upgraded to PHP 7.4, WP 5.4 and the autoscroll to an anchor link on the cover template no longer seems to work, instead of going to the #post-inner div it jumps to the top of the page instead. Having disabled smooth scroll, the anchor link now works correctly again, albeit with no nice animation. I’ve had a look at the js & checked the divs are all labelled correctly and everything seems okay. Just thought I’d log this so you’re aware and if you’ve got any ideas please give me a shout.