You have your character doing 2 animations at once here. Do you want them to walk rear and then immediately do the tinker animation? If so, you’re suppose to use “does it while” for the walk rear animation, not the tinker animation. Then to have them immediately do the tinker, you need to use the THEN command
@ERIK walks to spot 1.208 123 106 in zone 2 AND ERIK faces left AND ERIK does it while walk_neutral_rear THEN ERIK is tinker_stand_neutral_loop_rear AND ERIK faces left