Weird CSS "Error" – Please Help

Hello folks,

For some reason I can not explain, the Jetpack CSS Stylesheet Editor on my WP install keeps automatically adding this code –

!important;width: 442px !important;}

I’ve no idea why and I can’t recall anything I’ve don to make it occur. Even if I delete the code and save the stylesheet, WP just re-adds it. Also, every time I make an edit to the CSS it also adds an extra } after the above code.

As far as I can see it’s not affecting the site itself, the only effect I can see is that when I edit an image before adding it to a post that code appears in the “Description” and “Caption” boxes.

Anyone have any idea what could be causing this? I thought maybe re-installing WP might work, but it’s a bit drastic so I thought I’d check other options first.

Thanks in advance.

Site URL – soniccollectors.com