Hi everyone,
Please help me understand why I can’t maintain vertical alignment of text, buttons, cards etc

In the screenshot, I have done the following:

Created a New project
Added the Image media block to the slide
Changed the design option to: Introduction slide single image option 2. The text and button look vertically aligned, great.
When I change the Caption text to ‘Welcome‘, the text and button move up, as seen in the second screenshot – a smaller space at the top and a bigger space at the bottom.

Settings:

How can I keep the text and button vertically centred?

There are many examples slides in the Assets provided that work fine, I just can’t replicate it.
Can anyone suggest what I need to change?