Hello @Wolfgang,
I believe the <button> tag has to be manually applied to a block.
In this instance, we don’t currently support dynamic tags for Components → Components: Allow Dynamic HTML-Tag
This would require you to set the tag for your block’s component to <button>, but will mean that links won’t be supported.
Please let me know if I’m missing something here.
I appreciate the current implementation is somewhat limiting, but dynamic tags are planned to be released soon.
Cheers,