One of the SMARTS strings has been 'unicoded' in the configuration file.
Current: "[#6]-[#6]-[#6]-[#8]-[#6]\u223c[#6]\u223c[#6]\u223c[#6]\u223c[#6]-[#7]-c1ccc2ncsc2c1"
Correct: "[#6]-[#6]-[#6]-[#8]-[#6]~[#6]~[#6]~[#6]~[#6]-[#7]-c1ccc2ncsc2c1"
This leads to incorrect interpretation of the SMARTS. I would like to find the route cause of this to prevent it happening again, in the meantime the config can be changed manually.