Elementor or other third party builders containers tend to override some CSS values. If the response is not formatted properly and looks like a single line / no line breaks, you can use the following CSS to fix that:

.mwai-text {white-space: break-spaces;}

If this doesn’t work, you can also try:

.mwai-text {white-space: initial;}

.mwai-conversation { text-wrap: wrap; }