Not sure why, but every 3-tick bot drops all herbs except one, then as soon as the herbs on the ground disappear, it finished the herb tar process and logs out because the bot doesn't have the proper 3-tick ingredients. Not sure why the bot thinks is should drop any extra herbs, didn't used to do that.
Hey bro, i was an egg and had same issue. you NEED spare grimy herbs, NOT clean. I believe this is what makes 3T possible(need only 1 herb) but I could be wrong. But anyway, just bring 1 clean, & 5 or so grimy. Good luck with your gains brother, hope this helps.
Also do make sure you are in your Local/Home worlds, as the ping will cause you to lose herbs, also good internet is required. From my experiences it either doesn't lose a single herb, or it loses all 6 in quick succession, due to bad ping either from poor servers, not home world, 'net issues. so sometimes having many spare 3T items doesn't help to much, but definitely worth bringing.