Can't get Call of Cthulhu 7th ed. Character Sheet to save weapons or skill additions

From the Call of Cthulhu 7th edition: When I click on the +add weapons, a new row appears and I can enter the details; however, when I close out the sheet whatever I added disappears. The skill points and calculations work fine. The character information (character name, player name, etc...) also do not save. I opened a custom sheet and pasted the script from GitHub, but didn't make any changes yet. Any thoughts as to why it's not saving? Thanks,

make sure the name attribute for the field looks like this: name="attr_thing", otherwise it won't save.

Thanks, Sam. I see what you mentioned in the HTML code for the sheet for the fist listed weapon (the field that is permanently there). I don't know enough to get it to work with the adding weapon feature.