Multiple presets and structure of saved TIFF file

I just noticed that ColorEfex Pro saved 3 different Tiff files to my Lightroom catalog when I processed an image in Color Efex using 3 presets. And one of those Tiff files did not maintain the original crop. Previously, I had only used a single preset to process an image so I hadn’t noticed these multiple Tiff files.

I would have thought that the Nik plugins would save a single layered Tiff file if more than one preset is used before sending that image back to Lightroom.

Lightroom CC 9.3; Color Efex 5.0.3