Because it's a special tool originally, made in a 32 bit system, and is "translated" to also work in 64 bit, the other copy tool's is 64 bit i believe in a 64 bit system
Have you tested another way for Copy in Place, by select object, check copy tool, then just click Tab and then the Enter button ??
V20, V21, 2015/ 16/ 17/ 18/ 19 Pro. Platinum
Deluxe 2015/ 16/ 19
Windows 10 Home Premium 64 bit, 32 GB
NVIDIA Geforce GTX 780m, 1 GB