Create a PowerPoint presentation with size, for example, 20 cm x 11.25 cm. Then import the presentation in Adobe Captivate (2019 release) keeping the resolution of the project at full HD, for example, 1920 x 1080 px.
You can see all the slides on stage, however, when you preview the project in HTML5, the slides may not display as expected.
We are working on providing a fix for this issue. We shall share an update soon.
The slide will now be visible in runtime .