Not sure why, but one thing I always like to try is clearing your cache before anything.
Does the issue happen on all browsers? I know you may need it to work on one specific browser, but if it works on another browser I can get a better idea of what the issue might be.
Try putting it on SCORM cloud. Another great way to determine if there is something special with your LMS that is causing this.
Is the cenariovr content packaged with your lectora publish? or are you linking it externally on a different domain?