Rhino 7 to Sketchup Pro 2020 collada file (.dae) re-scale

I exported a SU Pro 2020 model to Rhino 7 where a colleague added some additional details. He sent me the model back as as collada (.dae) file and as a Sketchup file.
After importing each, when I try to rescale it back to the scale I was in, I get the message “Note that components within the model that were loaded from an external file will not be resized.” Effectively, only the original SU components were resized although all were selected. Nothing created in R7 was scaled.
Is there a way to import the edited Rhino 7 model back into SU so it can be further scaled and edited?