Blocks jump to the right when a block is deleted by dragging to the toolbox

[martinwork]

Describe the bug A clear and concise description of what the bug is.

Blocks jump to the right when a block is deleted by dragging to the toolbox

This seems to be new.

To Reproduce Steps to reproduce the behavior:

Create a new project:

Drag the forever block to the toolbox to delete it. On start jumps to the right.

It happens with other blocks, also after reloading the project

becomes

micro:bit version (please complete the following information): not hardware related

Desktop (please complete the following information):

• OS: [e.g. iOS] Windows 10
• Browser [e.g. chrome, safari] Chrome
• Version [e.g. 22] 128