'Remote file has been modified' loop when working with VB recfm

[adam-wolfe]

Describe the bug

I am seeing effectively the same behavior as (https://github.com/zowe/vscode-extension-for-zowe/issues/2007) except now with sequential data sets with a variable blocked record format. I am using an 8-character userid.

To Reproduce

1. Open a data set with a VB recfm.
2. Save it.
3. Save it again.
4. Error messages appear saying:

Failed to save '12345678.TESTVB': The content of the file is newer. Please compare your version with the file contents or overwrite the content of the file with your changes.

and

Remote file has been modified in the meantime. Select 'Compare' to resolve the conflict.

Expected behavior

The user should be able to save and upload the data set without error.

Screenshots

Desktop (please complete the following information):

• OS: Windows 10
• Zowe Explorer Version: 2.8.2
• (Optional) Zowe CLI Version:
• (Optional) Are you using Secure Credential Store?

Additional context

[github-actions[bot]]

Thank you for creating a bug report. We will investigate the bug and evaluate its impact on the product. If you haven't already, please ensure you have provided steps to reproduce the bug and as much context as possible.

[adam-wolfe]

Update: Still experiencing this in 2.14.

[traeok]

This was determined to be a z/OS (server-sided) problem. In case any other contributors or developers are encountering this on their systems, an APAR was released for z/OS to resolve this issue:

https://www.ibm.com/support/pages/apar/PH52243