My embeds with this plugin and shortcodes are 130 regardless of what I set in the defaults or in the shortcode parameters. This does not occur when I use the HTML embedding, so I will be uninstalling this plugin and using that as my fix.

I attached a screenshot of my settings for the plugin in case it helps repeat the issue:

Here is one shortcode I used, though I tried adding height here too: [hearthis]https://hearthis.at/usm/setting-bedtime-intentions/82y[/hearthis]

Here is my result: