Whenever a synced account syncs data into Lunch Money, it also syncs the account type and subtype from Plaid. If the user changes the account type and subtype, it eventually gets replaced with the type and subtype sent from Plaid. Instead, the user-defined account type and subtype should be prioritized and should not be overwritten. This can be reproduced by changing the type / subtype, then clicking on "Trigger Refresh".