when I publish the course to run from cd, some of the slides do not display and I get the error CallMethod: 003_blocklist ShowItem undefined, how do I solve this problem?

Hi, I have the same problem in Firefox only. Did anybody manage to solve this issue?

Hi, Ben,

the reason of such error is usually some timing mistake: when object's method is called (maybe on timer) and object itself is unexpectedly destroyed (for example, when you proceed to next slide). Perhaps, disabling navigation (NAVIGATION action) until all items of the list are displayed may help.