I licensed Slider Revolution for one of my sites on my network install. The other site used the free version that came with my theme I purchased. When I upgraded the paid site, it broke my network site and the site using the free version.
Thanks for your message. You can refer to this article https://www.themepunch.com/faq/revolution-slider-multisite-installation-activation-and-updates/ that explains how licensing works in a multisite. If you’ve further questions or require assistance, email us at firstname.lastname@example.org