Until version 2.1.2, when Position Sticky was enabled on sidebars (left or right positions), it worked correctly from 992px up, which is when the left or right sides of the component were positioned. However, when the resolution was lower than 991.98px, the bar stopped sticking, which was fine.
After updating to 2.1.3, the bar continues to activate even on phones, rendering the site unusable because it cannot be navigated. I have tested it locally with Firefox and Chrome.
To reproduce this bug, simply enable Position Sticky, open Developer Tools, or open the responsive viewer on a mobile device. You will see that everything is unusable at resolutions lower than 992px.
Regards