I’ve inspected the block and found this:
margin: -50px -10px 5px;
I see that you’re using GenerateBlocks. This spacing setting is causing issues on mobile.
I believe you’ve set this on Desktop but is being cascaded to the mobile viewport.
To prevent this from being applied on mobile, you must also set the margin-top to 0 for the container block’s Mobile Tab as shown here: https://share.getcloudapp.com/JrugGvE9
A wise man once said:
"Have you cleared your cache?"