What are some of the types of things that affect bookmarking?

owk1 Community Member, Lectora® Accessibility Group (LAUG) Member, eLearning Brothers® Partner Posts: 2 ☆ Roadie ☆
I am using Lectora 19 and am updating some courses that were developed by someone else. Everything is working fine except the bookmarking only works correctly in Internet Explorer. It does not work in Chrome or Edge. Does anyone have any idea what could be causing this? The course bookmarking worked fine in the previous version and I only updated the text and bullet alignment. Any help will be appreciated!