Get certified for free when you join Fabric Data Days 2026 and dive into Fabric, Power BI, SQL, AI, and other essential data skills.
Join nowTry your skills in the Power BI Dataviz World Championship! Round one ends June 26. Join now
I am attempting to aggregate a merged query but the preview has been "loading" for 10 minutes now (expanding the table only takes 15 seconds) When I try to apply without seeing the preview, it gets stuck after loading about 1/3 of the rows. Is there something I am doing wrong?
Hi @mwhalen ,
You may try to disable "background refresh".
If you don't want to refresh or load for specific reports in power bi desktop, you can disable the following options.
Also you can try Table.Buffer to performance.
About more details, please kindly refer to
Speed/Performance aspects – The BIccountant
Best Regards,
Stephen Tao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
| User | Count |
|---|---|
| 3 | |
| 3 | |
| 2 | |
| 2 | |
| 2 |
| User | Count |
|---|---|
| 11 | |
| 9 | |
| 5 | |
| 5 | |
| 4 |