Magento2 Layer Navigation

Magento2 Layer Navigation

Hi,

I am using magento2 layer navigation extesnion. I have enabled multiselect option. I am facing one issue that when I remove one option of applied filter it also removes other applied options. 
As shown in below picture when I remove green or blue or silver It will remove all three options. Please let me know what I have to do or make changes in file so that this problem get fixed