@alvina Yeah, I really didn't think it would've been jetpack as it was originally installed anyway! 

Hi Alvina, it was Jetpack causing the issue, the issue was it was automatically enabled by Wordpress for 'performance and speed', after literally tryi...

@alvina Thank you so much, I appreciate it massively! It seemed to work a while back, I also bought the advanced attachement add-on, dunno if I need t...