Are you mining from list or manually selected ores from screen? Also, did you set a custom mining tile? I just tested and it went to port sarim, deposited, and started walking back to rimmington mine (with list mode). I made the script default to osbot's webwalker, and if a path can't be found, it will use my webwalker as an emergency option which used to be the default walker since the beginning of the script.
I will run some more tests. will check out spam click with mirror mode too.