python-mtga:source/mtga/set_data/dynamic.py allows the set data to be based on querying the JSON files in the MTG Arena install. This is used by the main pane for mtgatracker:electron/index.html for showing the contents of a deck.

This dynamic data is not being properly used for the vault in multiple locations. mtgatracker:electron/index.html and mtgatracker:electron/collection.html shows percent progress only within the static set_data. Vault Treasure ( mtgatracker:electron/collection.html ) only shows (very) old sets under "Booster Packs". Vault Completion ( mtgatracker:electron/collection.html plus mtgatracker:electron/collectionRenderer.js ) only shows a selection of the sets.

This might be multiple related issues and warrant splitting.