python nodes in prompt flow is erasing the code

Question

python nodes in prompt flow is erasing the code

Mohammad, Abdel Salam 0

Hi,

I developed a prompt flow using Azure AI Foundry back in Feb, 2025. I came today to continue working on it, and I found that all the Python nodes are without the code, just a black node. I need the flow with nodes, please.

Mohammad, Abdel Salam 0 Reputation points

2025-04-10T11:43:56.75+00:00

Hi Amira,

Thank you for your reply.

I wrote back the code from scratch. The flow was working fine and I saved it. I went away for 15 mins and when I came back, refreshed the page to see if the compute session is still running or not, I found that all the codes have disappeared again!!
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-10T17:02:55.7766667+00:00

Hi Mohammad, Abdel Salam

Thank you for your inputs on retesting another prompt flow with custom python nodes,

I am trying to replicate the issue at my side too. But could you switch to any stable version from advanced section of computes and restart the prompt flow (There might have been possible regression issues, need to test)

Thank you.
Mohammad, Abdel Salam 0 Reputation points

2025-04-14T12:29:51.7566667+00:00

Hi,

I did create a new flow and again from scratch, I'll build the Python nodes. This time I used another runtime as per your recommendation. Unfortunately, after 15 to 20 minutes, all codes disappeared. I did download the flow this time, and I have the data as a zip file. But I want to know why this is happening.
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-14T13:58:57.7733333+00:00

Hi Mohammad, Abdel Salam

Could you confirm that you are saving the run time once you have uploaded the files to prompt flow.

Thank you for the collaborating.
Mohammad, Abdel Salam 0 Reputation points

2025-04-15T04:47:55.4266667+00:00

Hi Manas,

Yes, of course. I have been using PromptFlow for around 6 months, and it was fine.

This is the image I'm using currently: mcr.microsoft.com/azureml/promptflow/promptflow-runtime:20250411.v2
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-15T12:22:41.0233333+00:00

Ok Mohammad, Abdel Salam

Thank you for the update.

I am able to sync the changes in python tool. Attached screenshot below.

I suspect the Project resource might have gone corrupt at your side.

Could you create any project and share latest screenshot if the issue persists.

I have already informed team internally for pointers on it from myside.

Thank you for collaborating.
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-16T12:08:16.59+00:00

Hi Mohammad, Abdel Salam

We are waiting to hear your inputs on above issue on new AI projects.

Thank you.
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-17T05:59:00.9+00:00

Hi Mohammad, Abdel Salam

We have not heard from you. Hope you were able to address the issue.

Thank you.

1 answer

Your answer

Mohammad, Abdel Salam 0 Reputation points

2025-04-10T11:43:56.75+00:00

Hi Amira,

Thank you for your reply.

I wrote back the code from scratch. The flow was working fine and I saved it. I went away for 15 mins and when I came back, refreshed the page to see if the compute session is still running or not, I found that all the codes have disappeared again!!
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-10T17:02:55.7766667+00:00

Hi Mohammad, Abdel Salam

Thank you for your inputs on retesting another prompt flow with custom python nodes,

I am trying to replicate the issue at my side too. But could you switch to any stable version from advanced section of computes and restart the prompt flow (There might have been possible regression issues, need to test)

Thank you.
Mohammad, Abdel Salam 0 Reputation points

2025-04-14T12:29:51.7566667+00:00

Hi,

I did create a new flow and again from scratch, I'll build the Python nodes. This time I used another runtime as per your recommendation. Unfortunately, after 15 to 20 minutes, all codes disappeared. I did download the flow this time, and I have the data as a zip file. But I want to know why this is happening.
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-14T13:58:57.7733333+00:00

Hi Mohammad, Abdel Salam

Could you confirm that you are saving the run time once you have uploaded the files to prompt flow.

Thank you for the collaborating.
Mohammad, Abdel Salam 0 Reputation points

2025-04-15T04:47:55.4266667+00:00

Hi Manas,

Yes, of course. I have been using PromptFlow for around 6 months, and it was fine.

This is the image I'm using currently: mcr.microsoft.com/azureml/promptflow/promptflow-runtime:20250411.v2
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-15T12:22:41.0233333+00:00

Ok Mohammad, Abdel Salam

Thank you for the update.

I am able to sync the changes in python tool. Attached screenshot below.

I suspect the Project resource might have gone corrupt at your side.

Could you create any project and share latest screenshot if the issue persists.

I have already informed team internally for pointers on it from myside.

Thank you for collaborating.
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-16T12:08:16.59+00:00

Hi Mohammad, Abdel Salam

We are waiting to hear your inputs on above issue on new AI projects.

Thank you.
Manas Mohanty 5,620 Reputation points Microsoft External Staff Moderator

2025-04-17T05:59:00.9+00:00

Hi Mohammad, Abdel Salam

We have not heard from you. Hope you were able to address the issue.

Thank you.

Answer 1

Hello Mohammad !

Thank you for posting on Microsoft Learn.

Microsoft has been rolling out updates to Prompt Flow and the underlying Azure AI Studio tooling.

In some cases, these updates can affect saved flows, especially those created before certain February/March 2025 updates.

If the .promptflow file or node JSON was partially corrupted or not properly synced, the UI may show "blank" nodes.

If you're viewing the flow in a newer version of the studio that expects additional metadata, and your original flow didn't have it, nodes may fail to render properly.

What you can do ?

Try to inspect .promptflow/ folder and node .json files

Open your local or cloud project directory.
Look inside .promptflow/flows/<flow-name>/ or .promptflow/ folders.
Check if the .json files for each Python node contain the "code" block or "source" property.

Try to reach out to the support team by opening a ticket if your issue still persist.

Share via

python nodes in prompt flow is erasing the code

1 answer

Your answer