Button block having alignment option selected is collapsing with paragraph block in twenty nineteen, twenty twenty and twenty twenty-one theme.

[smit08]

Steps to reproduce:

1. Activate Twenty nineteen/Twenty twenty/Twenty twenty-one theme.
2. Add the button block with alignment option selected like left or right. In center and left it is working fine.
3. Now try to add another block like paragraph block after the button block. You will clearly see the issue.

[smit08]

You can clearly see the issue that both the blocks are overlapping.

[smit08]

#56569 was marked as a duplicate.

[sabernhardt]

Thanks for the report!

This should be the same issue as ​https://github.com/WordPress/gutenberg/issues/42790.

That alignment control now sets text-align classes instead of the floating alignleft or alignright classes that caused the overlap.