I fixed it. I changed the "_erased" attribute of the "$LuxShoes" event to "true", then it interacts with the boots and when "starting the class" they disappeared so that Lux could walk. Later after finishing the class in the next save game, manually add the event, setting the attribute to "false".during one of the classes, lux seems to run into an obstacle (possibly the boots) and does not advance, I just lost my save XD
View attachment 2265206
This in save file 2, in "RPG MAKER MV SAVE EDITOR"