I was just thinking that at some point when it asked "are you sure you want to merge these folders" or "are you sure you want to overwrite this file you may have clicked either no or copy, but keep both files (one shall be named*insert name here*(1)). It isn't hard, and undoing clumsiness would be a much easier fix if it works than anything else.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
