Hi Paul Hetherington (paul.hetherington):
We are very sorry for the problem you encountered. First, the web version of Excel does not support PowerQuery.
Secondly, we also did a test in our end. When multiple people open the shared workbook at the same time, I can still refresh the data. At the same time, I also found a similar post:"Refresh Paused"? - Microsoft Community
One of the users said it might have something to do with the settings, you can try turning this setting off to see if the problem still occurs
If the problem persists, there are some questions we need to check so that it will help me understand the scenario.
- May I know whether this error happens to a specific file or all the worksheets?
- Could you provide the screenshot of this error message?
Hope this will help you.
Tin