How to create a video for a map?

When editing a map for a scene, a very unpleasant thing happens: every time I switch to the tiles tab, the editor crashes. Is there a way to fix this?

When editing a scene, there is only the Objects tab. You cannot change the landscape of the map while editing the video. First, you need to load a map with a ready-made landscape.

By the way, should objects on the map for the video be placed when creating the map itself or when creating the video?