I have a couple of Excel 365 spreadsheets with a PowerQuery running to combine multiple tabs together. As of this morning, 22nd December 2021, SharePoint will not permit them to be opened and is closing the browser tab when attempts are made. I am having to download, work with the documents locally and then re-upload to SharePoint (defeating the purpose of having a live document to collaborate in). These documents have run absolutely fine for months-and-months.
Is anyone aware of any technical issues that might cause this issue?