Getting black screen in Zoom websdk 1.8.0 when waiting room enabled

Params :

ZoomMtg.init({
leaveUrl: leaveUrl,
showMeetingHeader: false,
videoHeader: false,
disableInvite: true,
success: function () {
ZoomMtg.join(
{
meetingNumber: meetConfig.meetingNumber,
userName: meetConfig.userName,
signature: meetConfig.signature,
apiKey: meetConfig.apiKey,
passWord: meetConfig.passWord,
userEmail: meetConfig.userEmail,
success: function (res) {
console.log(‘join meeting success’);
if ((".meeting-info-icon__icon-wrap").length > 0) { (".meeting-info-icon__icon-wrap").hide();
}
},
error: function (res) {
console.log(res);
}
}
);

Also to further explain the sequence, I get “Joining Meeting”, then a flash of the Zoom interface, then “Joining Meeting” then blank blank screen, then when admitted “connecting” message. Screenshot of those below:

This is shown first:

Then a flash of the interface for about 1 second:

Then Joining again:

Then black screen:

Then once the host admits me to the meeting, “Connecting Message”:

Then after that loads interface and works fine.