What?

Reproduced in Gutenberg v17.6.3 on Chrome and Firefox, MacOS.

On the editor's pattern inserter, extra vertical padding is added to the bottom of the pattern preview of a Row block with images when "Allow to wrap to multiple lines" is enabled.

Unexpected aspect ratio	Expected result

The issue is only reproducible when the option "Allow to wrap to multiple lines" is enabled.

Here is a screenshot when that option is disabled:

On Chrome, the development tools must be closed to reproduce the issue.

On Firefox, the dev tools can stay open.

Why?

It seems there is a bug in how the aspect ratio is calculated. Maybe a race condition?

That extra padding is not expected and can confuse users on the actual pattern height.

How?

Debugging how the aspect ratio is calculated. See

Here is the pattern markup used for testing:

```html

```