I installed the latest version of Syncthing on two computers (BionicPup linux) this morning.
/foldera existed on both computers before installing Syncthing. I created a shared folder named Foldera, location /foldera on one computer and shared it between the two computers. However, Syncthing created /root/foldera and used that on the second computer instead of /foldera
MY BAD! I didn’t notice that there was an option to set folder location when accepting the share.