It's good to see you again in the Community forum, Gary.
To start, could you share more details about your concern? For example, what steps are you taking when the currencies fail to update? This information will help us better understand the issue and offer a more precise solution.
In the meantime, if you're creating a transaction and the exchange rates don't update, a future transaction date could be the issue. Entering yesterday's date instead may resolve this and allow the currency rate to refresh.