Possible code issue-- log reference to c:\zincbox\install-win64\include\wx\strvararg.h

Please describe what you are doing to trigger the bug:
Running first two backups of my Windows c:\users\Charlie directory

Please describe what you expect to happen (but doesn’t):
Log entries as normal

Please describe what actually happens (the wrong behaviour):
Several times in my first GUI-driven duplicacy logfile, I get a few lines like the fifth line below (screenshot from Notepad++ attached to show the “Nul” characters):

2018-12-27 20:44:32.679 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/DigiCert_Global_Root_G3.pem (62)
2018-12-27 20:44:32.687 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/DigiCert_High_Assurance_EV_Root_CA.pem (73)
2018-12-27 20:44:32.718 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/DigiCert_Trusted_Root_G4.pem (63)
2018-12-27 20:44:32.725 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/E-Tugra_Certification_Authority.pem (70)
   ÿÿÿÿÿÿÿÿ    %d  c:\zincbox\install-win64\include\wx\strvararg.h                 format specifier doesn't match argument type          
2018-12-27 20:44:32.788 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/EC-ACC.pem (45)
2018-12-27 20:44:32.795 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/EE_Certification_Centre_Root_CA.pem (70)
2018-12-27 20:44:32.803 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/Entrust.net_Premium_2048_Secure_Server_CA.pem (80)
2018-12-27 20:44:32.810 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/Entrust_Root_Certification_Authority.pem (75)
2018-12-27 20:44:32.819 INFO PACK_END Packed AppData/Local/lxss/rootfs/etc/ssl/certs/Entrust_Root_Certification_Authority_-_EC1.pem (81)

If this is still happening, can you check if there is supposed to be a file on this line (that is, check the file before this line and the file after to see if there is a file in between)?