Power Query stopped refreshing after macOS update /Microsoft.Mashup.Container error

Hey guys,

I’ve been struggling to resolve this issue for a few hours.

I have a Power Query table in Excel that was working perfectly until last week, but now it won’t refresh anymore.

Here’s what I’ve already tried:

• Deleted and reinstalled Office

• Installed an older version of Excel

• Checked permissions / gave full disk access

• Restarted multiple times

None of this solved the problem.

I’m starting to wonder if this could be related to a recent macOS update, but I’m not sure.

When I go to Data → Power Query → Refresh, I get the following error after selecting the file:

An exception occurred: The application “Microsoft.Mashup.Container” could not be launched because it was not found. (Error: 260).

(Session ID: [redacted])