Issue with images with buttons?

Site URL: https://www.eshertennis.co.uk/homenew

pw: james

I've encountered a strange, sudden issue with buttons within image blocks on my website. A black outline is appearing across the images (see attached). It seems to have only happened in the past day or two.

I temporarily removed all custom code to check it wasn't something I had done mistakenly, and it wasn't. When I add a new image block and place a button on the image, the black lines appear as soon as I save the page. When I'm in the page editor, the lines disappear (so they aren't an object I can simply click on and delete)

Is this a known issue? And does anyone know how to fix it?

This is an issue I just discovered tonight as well. This wasn't an issue yesterday. Attaching my images for reference.

I am unable to access the URL from your posting using the password provided.

5 hours ago, creedon said:

I am unable to access the URL from your posting using the password provided.

Apologies @creedon I made a typo, the page password above is correct now.

However, this morning the issue has disappeared. Must've been something at Squarespace's end. Thanks for answering though.