Hi,
Since the new prerelease 4 of 1.19, video hotspot keep loading after scene change and even after the viewer as been remove in javascript. This is a problem when you have many hotspot video in many scene. The videos accumulate and the browser just crash after some time.
I had to roll back to prerelease 3 to fix the problem.
Hope this problem can be fixed in the next release/prerelease.
Thank you