When I use a Composition widget and click on the trigger, the target area will appear with content in a lightbox. Somehow, things have recently changed in Muse. If the target area to be viewed in the popup, is longer than the users screen area, the user cannot now scroll down vertically to view contents below the fold in the lightbox.
I viewed my site using Windows Explorer and Chrome, with the same results. I suspect that this is from a Muse update because I have not changed my design or
content. My pages are fixed width.
How can this be corrected?
We apologize for the inconvenience.
Yes, this is a bug which we are aware of and will be fixed in our next update.
Till the time you may choose rolling back to the previous version until the issue is fixed.
It would be helpful to know the release date of the next update and which version is the last best version for rolling back. Instructions to do this would be helpful.
The next release date is not yet declared, however, you can roll back to Muse 2015.2
See - How to Find and Install Previous Version of Adobe Apps in CC 2015 to install a previous version of Adobe Muse.