Session diagnostics error

Hi

Since the June 2026 version of power BI, if I enable 'Start Diagnostics' in the Tools menu of Power Query (for Query Editor only), I get an error when I refresh the data preview:

Container exited unexpectedly with code 0x80131623. PID: 5844.

This didn't happen on older versions, but I get the error in June and July 2026 versions. I haven't tried August - we haven't installed it on our tenant yet.

Has anybody come across this error before? It is a known bug that is fixed in later versions? Thanks