Dataflow Gen1 not refreshing since 2 days

[cboursat]

Hello,

I have 4 dataflows Gen1 which are not refreshing since 2 days on PowerBI Server

The Premium Capacity is OK.

I created an new dataflow gen1, with the same tables than my 1st dataflow : it's refreshing fine.

I cheked the differences between the 2 JSON files. I found out this : a partition entry in the new one, not in the old one. What can I do about it ?

New Dataflow : 

            partitions

                {

                    location: name of the file, 

                    name: FullRefreshPolicyPartition, 

                    refreshTime: datetime                 } 

Thanks for your help

Carole

[MFelix]

Hi @cboursat ,

Not sure what can be happening and probably you already tried some of this, but try one of this options:

• Check the refresh history to see the details of what might be happening
• Try a manual refresh works
• Do a copy of the original Dataflow - on the top right corner you have the export template and then import it when create the new one check if this new one also refresh
• Try to make a minor change to your dataflow and then save it again this will force the json to update

[cboursat]

Hellon thanks for your help.

I did a minor change, a refresh. And error int the refresh history : 2026-01-15 10:52:23,TRAINING_BASE,Failed,DATE_MAJ,FullRefreshPolicyPartition,Completed,2026-01-15 10:52:24,2026-01-15 10:52:29,00:00:05.1100,26,1,Not available,00:00:02.4380,00:00:00.1780,Cached,Not available

I don't have an export button on GEN1. I can only export the JSON...and unable to reimport it

[MFelix]

Hi @cboursat ,

The option is not on the export it's on the top right corner of the dataflow:

Do you have this button available?

[cboursat]

My dataflows are on PowerBI Server. Not in PowerBI Desktop

[MFelix]

Hi @cboursat ,

The image is from the Power BI service, the export template is not available in Power BI Desktop.

When you refer to Power BI Server you mean the service correct? if you edit the dataflow you should get the that button on the Power Query window for editing the Dataflow.

[cboursat]

OK, I found the button 🙂

I exported a .pqt file

Not sure I can import it, the import asks for a JSON ?

[cboursat]

OK. I exported the JSON. Created a new dataflow and imported the JSON...And the refresh is working fine

[MFelix]

@cboursat ,

Glad you were able to find the workaround.

This is a weird problem since the exact same JSON works properly in a new Dataflow.

When you are inside the dataflow if you do the refresh preview does it show data or also an error?

[cboursat]

inside the "error" dataflow, all datas are fine, up to date ! I updated again the connexion...no improvement

[cboursat · Accepted solution]

Hello,

I finally moved some tables from one dataflow to another. I deleted the "error" dataflow. I rebuild my connexions in my semantic model. And now it's working.

I don't know what happened anyway, it's a mystery

[MFelix]

Hi @cboursat ,

Glad you were able to fix it sorry for not helping much more.