HERE ARE THE FIXES I HAVE FOUND TO THE AUTO BUILD GLITCH YOU GET WITH ITEM TO X900
1.-One fix can be randomly 8with cheats disabled) achieved by going to a korok looking for his friend, build a car and then atach the korok to the friend,deliver the korok without detaching it from your car and talk to the friend without geting out of the car, if youre lucky the amount will be fixed and only the last build will be shown.
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2.-Another fix can be rather random as well, with cheats disabled, get some build materials from your inventory and build anything, then favourite it, then get dofernt materials and build another thing, favourite it, try un favourite any glitched build, if you can keep building new stuff and keep trying to un favourite glitched builds, if this doesnt work DONT RESET, let your build be stored in the resent memory, then change location and keep doing it, eventually, you will get rid of the glitched favourite build.
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3.-Another One is rater simple, but it can be locked, as well with cheats disabled all you need to do is get shcma stones and yiga schematics, this will push the glitched squares, but if you got them all then you cant use this method