I upgraded to WordPress 5.5 and Slider Revolution broke. It displays blank space. I installed Meta Slider and Smart Slider 3 and I get the same result/problem. Blank space. When I inspect the element I can see the slider code but every slider plug-in displays the appropriate sized blank space where the slider should be.
I have installed
Slider Revolution 6.2.18 (the SR page - https://spc.pca.org/wp-admin/admin.php?page=revslider - says 6.2.19 is available but ‘Activate to Update’ is greyed out so I can’t update)