Hi Rob, sorry to hear about the issues.
Could you please confirm which Product are you using? Please note that you have posted your question to the # gooddata-platform channel, but it seems you are rather using GoodData Cloud. In such case, could you please move it to the correct channel:
https://gooddataconnect.slack.com/archives/C04S1MSLEAW?
At this time I can confirm we do not have any internal reports of incidents that could have caused the issue.