Hmm…seems somewhat similar to this one
http://discourse.stonehearth.net/t/hoe-tool-sticky-workbench/19577?u=jomaxro
except in your case the sword does not appear to be a ghost entity. Does the sword remain stuck on save/reload? If so, can you upload your save game?
To upload a save, locate the folder in C:\Program Files (x86)\Steam\steamapps\common\Stonehearth\saved_games (assuming a default Steam install), zip the individual save’s folder (not the entire saved_games folder), and upload it. If the *.zip is less than 10 MB, feel free to upload it directly to the Discourse. If larger, please upload it to a cloud storage site like Dropbox, Google Drive, File Dropper, etc. and post the sharing link here.