Copying to where from where? Perhaps provide the steps you are taking.
Make edits and adjustments to one picture then copying all those settings to another picture? I am not sure i can explain it any better.
I just switched to Lightroom Classic and it took 5 seconds to accomplish what i wanted to. Make my edits and adjustments, go to grid view, right click on said image, develop settings, copy settings, check all, then same steps to the new picture you want to copy the settings over to but you paste the settings you just copied. This doesn't seem to be in the new Lightroom CC and it is very frustrating.
Make adjustments to your primary image. Open presets and make one of your own. Then apply the preset to as many other images as you want.
Bet you can do it in 5 seconds!