Livechat Widget "deletes" chat, shows again when popout or refreshing

[rsgodinez]

Hi.

We invoke the widget.

this.showWidget();
this.initialize({
theme: {
title: title
}
});
this.setDepartment(depart);
this.maximizeWidget();

Widget shows correctly, so we register and start chatting:

Chat goes OK:

But when clicking on minimize:

this.onChatMinimized(function() {
RocketChat(function() {
this.hideWidget();
});

And then invoking the widget again

this.showWidget();
this.initialize({
theme: {
title: title
}
});
this.setDepartment(depart);
this.maximizeWidget();

chat shows like it has been "deleted":

if we use popout, it shows the chat text again

Same happens if we refresh F5.

But it can be confusing for the users, if they minimize and maximize without doing refresh F5. This issue/bug didn´t happen in livechat included with rocket.chat 3.11.1. It's happening in livechat included with rocket.chat 4.3.1.