How to troubleshoot auto currency exchange rate update failure

I’m on the latest v10 update as of today and the auto currency exchange mechanism has been failing ever since we’ve started using erpnext. We have to fill the USD to LKR exchange rate manually each time.

So far I couldn’t find any documentation on the feature and there doesn’t seem to be any configurability in place.

On another post a developer mentioned that the issue would be fixed, maybe it came back? At least for me.

What are some troubleshooting steps I can take to resolve this issue?

I just found out that the “currency exchange” list solves this problem temporarily.