Multiple Instructions boxes stop full motion playback

Hi,

I have a software simultation with a full motion recording slide part way through. I want to add multiple instruction boxes during the FMR playback, but with only one visible at any time. It all works fine when editing, but when I publish the HTML 5, the playback of the FMR stops when the first instruction box disappears. The other instruction boxes appear on cue and the next slide appears when expected.

It seems to work fine if I leave the first instruction box on screen for the full duration of the slide. I can bring other boxes on and off screen in that case.

I'm on Captivate v 12.6.0.63

Thanks

Derek