Hello,
First of all thanks for choosing our Theme, we are glad to be you in the WoodMart WordPress family :-).
I saw the screenshot you attached.
The height of the slider depends upon the content you added on it. If there is no content on it then it will take the height of the image. In your case the content of the slider is different in height. That’s why it’s displayed like this.
Please make sure you have added equal data in the slide. This will fix the issue.
Best Regards.