We recently upgraded our application from Pega 8.8.1 to 24.1.2. We have a functionality where OpenURLWindow is configured to invoke a data transform, and we pass certain parameters to it.

However, we are encountering inconsistent behavior (like datatransform is not invoked) with the parameter values:

• Sample Parameter values that do not work:

  • "234_Hello.png"

  • "234.png"

• Parameter values that work successfully:

  • "Hello.png"

  • "236_20250623T183541.298.JPG

We haven’t been able to identify a clear pattern that causes the issue. The generated links for working and non-working cases look identical, so we suspect this might relate to how links are formed or handled internally in 24.1.2.   when we tested with activity with the same parameter values then no issue but we would like to use Datatransform.

Has anyone experienced similar issues after upgrading? Is there something new in 24.1.2 that could affect how parameters (especially file names with certain patterns) are handled in OpenUrlInWindow?

Any guidance or ideas are appreciated!