1. Try to upload a wider image that will be equal to your container width, or use the following custom code:
2. Our theme does not affect the position of the WCMP widget sidebar and plugin styles, designed in the way that they change sidebar position to the left when RTL language is activated. You can switch to default WordPress theme and check it how it works.
3. Try to add following code to the Global Custom CSS area in Theme Settings to hide following filter button.