ProSeries has dected a system change which invalidates the converted file contents

Hi everyone,

I'm wondering if anyone else has run into this issue over the past few days.

Beginning around 7/10/2026, I started receiving the following error when attempting to transmit 2025 returns:

"ProSeries has detected a system change which invalidates the converted file contents. Please re-convert."

Some additional details:

• The return converts successfully.
• The converted files are created in the 25EFILE folder.
• As soon as I click Transmit, ProSeries immediately displays the error above and deletes the converted files from the 25EFILE folder.
• This affects all 2025 products (1040, 1120, 7004, etc.), not just one return or one tax module.
• 2024 ProSeries continues to e-file without any issues.

I've already tried the following:

• Repair Updates through the Tool Hub
• Downloading updates multiple times
• Reinstalling ProSeries 2025 (including a fresh workstation installation)
• Verifying all workstations are on the same build
• Testing on multiple computers

Yesterday (7/15), I found an older workstation that had not yet been updated to the latest 2025 build. On that machine, I was able to successfully e-file the exact same returns that were failing on every other workstation.

However, today, when that computer automatically updated to the latest 2025 build, it immediately began producing the same "system change" error. That makes me think the issue may be related to the most recent update rather than the returns themselves.

I spent several hours with ProSeries Support on 7/14. The case was escalated beyond first-level support, but they were unable to resolve the issue and believed it was related to my files rather than the current ProSeries build. Based on the testing above, I'm not convinced that's the root cause.

Current build information:

• ProSeries Professional 2025
• WPRO32 Version: 20251311 (Program Version 2025.13.11)

Has anyone else experienced this issue after updating to this build? If so, were you able to resolve it?

Any suggestions would be greatly appreciated. Thanks in advance.